111011111101091 has 8 divisors (see below), whose sum is σ = 113597691187200. Its totient is φ = 108424754939592.

The previous prime is 111011111101061. The next prime is 111011111101207. The reversal of 111011111101091 is 190101111110111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111011111101091 - 2²⁶ = 111011043992227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111011111101061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54977891 + ... + 56961308.

It is an arithmetic number, because the mean of its divisors is an integer number (14199711398400).

Almost surely, 2^{111011111101091} is an apocalyptic number.

111011111101091 is a deficient number, since it is larger than the sum of its proper divisors (2586580086109).

111011111101091 is a wasteful number, since it uses less digits than its factorization.

111011111101091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111962305.

The product of its (nonzero) digits is 9, while the sum is 20.

The spelling of 111011111101091 in words is "one hundred eleven trillion, eleven billion, one hundred eleven million, one hundred one thousand, ninety-one".