111110110001091 has 24 divisors (see below), whose sum is σ = 164257934919936. Its totient is φ = 72336154690800.

The previous prime is 111110110001063. The next prime is 111110110001117. The reversal of 111110110001091 is 190100011011111.

It is not a de Polignac number, because 111110110001091 - 2⁴² = 106712063489987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111110110001021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27078735 + ... + 30910808.

It is an arithmetic number, because the mean of its divisors is an integer number (6844080621664).

Almost surely, 2^{111110110001091} is an apocalyptic number.

111110110001091 is a deficient number, since it is larger than the sum of its proper divisors (53147824918845).

111110110001091 is a wasteful number, since it uses less digits than its factorization.

111110110001091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57994543 (or 57994540 counting only the distinct ones).

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

The spelling of 111110110001091 in words is "one hundred eleven trillion, one hundred ten billion, one hundred ten million, one thousand, ninety-one".