111110101100091 has 40 divisors (see below), whose sum is σ = 169908860987184. Its totient is φ = 72321118168320.

The previous prime is 111110101100087. The next prime is 111110101100179. The reversal of 111110101100091 is 190001101011111.

It is not a de Polignac number, because 111110101100091 - 2² = 111110101100087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111110101100071) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1967655 + ... + 15036351.

Almost surely, 2^{111110101100091} is an apocalyptic number.

111110101100091 is a deficient number, since it is larger than the sum of its proper divisors (58798759887093).

111110101100091 is a wasteful number, since it uses less digits than its factorization.

111110101100091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13071193 (or 13071184 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 18.

The spelling of 111110101100091 in words is "one hundred eleven trillion, one hundred ten billion, one hundred one million, one hundred thousand, ninety-one".