111117869997 has 16 divisors (see below), whose sum is σ = 154659909120. Its totient is φ = 70829752752.

The previous prime is 111117869983. The next prime is 111117870001. The reversal of 111117869997 is 799968711111.

It is a happy number.

It is not a de Polignac number, because 111117869997 - 2⁷ = 111117869869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111117869997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111117869497) 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, 141943 + ... + 492324.

It is an arithmetic number, because the mean of its divisors is an integer number (9666244320).

Almost surely, 2^111117869997 is an apocalyptic number.

It is an amenable number.

111117869997 is a deficient number, since it is larger than the sum of its proper divisors (43542039123).

111117869997 is a wasteful number, since it uses less digits than its factorization.

111117869997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636832.

The product of its digits is 1714608, while the sum is 60.

The spelling of 111117869997 in words is "one hundred eleven billion, one hundred seventeen million, eight hundred sixty-nine thousand, nine hundred ninety-seven".