111020999992 has 48 divisors (see below), whose sum is σ = 243071858160. Its totient is φ = 46568027136.

The previous prime is 111020999923. The next prime is 111020999993. The reversal of 111020999992 is 299999020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020999993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325033 + ... + 572440.

It is an arithmetic number, because the mean of its divisors is an integer number (5063997045).

Almost surely, 2^111020999992 is an apocalyptic number.

It is an amenable number.

111020999992 is an abundant number, since it is smaller than the sum of its proper divisors (132050858168).

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

111020999992 is an equidigital number, since it uses as much as digits as its factorization.

111020999992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897580 (or 897529 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 52.

The spelling of 111020999992 in words is "one hundred eleven billion, twenty million, nine hundred ninety-nine thousand, nine hundred ninety-two".