111202011987 has 32 divisors (see below), whose sum is σ = 175753789440. Its totient is φ = 61788420000.

The previous prime is 111202011979. The next prime is 111202012037. The reversal of 111202011987 is 789110202111.

It is not a de Polignac number, because 111202011987 - 2³ = 111202011979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (111202011967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2841139 + ... + 2880012.

It is an arithmetic number, because the mean of its divisors is an integer number (5492305920).

Almost surely, 2^111202011987 is an apocalyptic number.

111202011987 is a deficient number, since it is larger than the sum of its proper divisors (64551777453).

111202011987 is a wasteful number, since it uses less digits than its factorization.

111202011987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5721215.

The product of its (nonzero) digits is 2016, while the sum is 33.

The spelling of 111202011987 in words is "one hundred eleven billion, two hundred two million, eleven thousand, nine hundred eighty-seven".