111091011102 has 12 divisors (see below), whose sum is σ = 240697190760. Its totient is φ = 37030337028.

The previous prime is 111091011077. The next prime is 111091011121. The reversal of 111091011102 is 201110190111.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6171722839 = 111091011102 / (1 + 1 + 1 + 0 + 9 + 1 + 0 + 1 + 1 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3085861402 + ... + 3085861437.

It is an arithmetic number, because the mean of its divisors is an integer number (20058099230).

Almost surely, 2^111091011102 is an apocalyptic number.

111091011102 is an abundant number, since it is smaller than the sum of its proper divisors (129606179658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111091011102 is a wasteful number, since it uses less digits than its factorization.

111091011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171722847 (or 6171722844 counting only the distinct ones).

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

The spelling of 111091011102 in words is "one hundred eleven billion, ninety-one million, eleven thousand, one hundred two".