His 8-year-old son, Appaz Iliev, said he was born during the last Russian Tsar, served in World War 1 and was not old enough to participate in World War 2.
According to the Daily Mail, his grandfather's birth certificate was lost, so he could not verify his true age.The oldest man so far recorded is Jiroemon Kimura from Japan. He died in 2013 at the age of 116 years and 54 days.
The oldest living person in the world is Kane Tanaka, also in Japan, aged 116 years, 127 days.
Appaz Iliev said that his long-term secret is to sleep 11 hours a night, go to bed at 7 pm and wake up at 6 o'clock . Mr. Appaz avoided going to the doctor and taking the medicine as much as possible.
He only ate clean vegetables from his vegetable garden and planted and bought meat from local people himself. He was said to be born in 1896, under the Russian Tsar Nicholas II, to join the Red Army of the Soviet Union during the Russian Civil War 1917-1922.
The head of the Republic of Ingushetia, Yunus-Bek Evkurov, wrote: 'Russia's longest-lived man, Appaz Iliev, died at the age of 123'.
'Appaz has witnessed a long period of history, with 8 children, 35 grandchildren, 34 great - grandchildren,' said Yunus-Bek. 'He is a kind person, loves his life. I have met him several times. '
He once said: 'Cherish what you have and share them with others'. Although he is considered to be the oldest Russian citizen, he never actually studied Russian, but only spoke the local language.
Throughout his life, he worked almost as a shepherd.'The first time I went to shepherd was when I was 7 years old. At that time, I was young and very scared when I saw military soldiers' , he said a few years ago. 'It has been over 100 years but I still remember that moment'.
Two years ago, he had a problem with one eye and had surgery. Since then, instrumental health has declined. Appaz is recognized as the oldest person in Russia in 2015 record books.
The grandson Mustafa Iliev, 33, said: 'He taught us a lesson about human love. Whenever someone needs help, take the initiative to help him or her. '
The second lesson is about sharing.'He used to kill pet meat to share with the poor'.