111145719797 has 16 divisors (see below), whose sum is σ = 127922209920. Its totient is φ = 94594713408.

The previous prime is 111145719793. The next prime is 111145719799. The reversal of 111145719797 is 797917541111.

It is a cyclic number.

It is not a de Polignac number, because 111145719797 - 2² = 111145719793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111145719793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568783 + ... + 1638099.

It is an arithmetic number, because the mean of its divisors is an integer number (7995138120).

Almost surely, 2^111145719797 is an apocalyptic number.

It is an amenable number.

111145719797 is a deficient number, since it is larger than the sum of its proper divisors (16776490123).

111145719797 is a wasteful number, since it uses less digits than its factorization.

111145719797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70940.

The product of its digits is 555660, while the sum is 53.

The spelling of 111145719797 in words is "one hundred eleven billion, one hundred forty-five million, seven hundred nineteen thousand, seven hundred ninety-seven".