111110011101091 has 4 divisors (see below), whose sum is σ = 113693964847672. Its totient is φ = 108526057354512.

The previous prime is 111110011101049. The next prime is 111110011101161. The reversal of 111110011101091 is 190101110011111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111110011101091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110011101041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291976873226 + ... + 1291976873311.

It is an arithmetic number, because the mean of its divisors is an integer number (28423491211918).

Almost surely, 2^{111110011101091} is an apocalyptic number.

111110011101091 is a deficient number, since it is larger than the sum of its proper divisors (2583953746581).

111110011101091 is an equidigital number, since it uses as much as digits as its factorization.

111110011101091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583953746580.

The product of its (nonzero) digits is 9, while the sum is 19.

The spelling of 111110011101091 in words is "one hundred eleven trillion, one hundred ten billion, eleven million, one hundred one thousand, ninety-one".