111102010091 has 8 divisors (see below), whose sum is σ = 111333231744. Its totient is φ = 110870948160.

The previous prime is 111102010087. The next prime is 111102010183. The reversal of 111102010091 is 190010201111.

It is a happy number.

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 111102010091 - 2² = 111102010087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111102010021) 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, 1406831 + ... + 1483703.

It is an arithmetic number, because the mean of its divisors is an integer number (13916653968).

Almost surely, 2^111102010091 is an apocalyptic number.

111102010091 is a deficient number, since it is larger than the sum of its proper divisors (231221653).

111102010091 is an equidigital number, since it uses as much as digits as its factorization.

111102010091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79861.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 111102010091 in words is "one hundred eleven billion, one hundred two million, ten thousand, ninety-one".