111871388088 has 80 divisors (see below), whose sum is σ = 324148473000. Its totient is φ = 36004578624.

The previous prime is 111871388033. The next prime is 111871388171. The reversal of 111871388088 is 880883178111.

111871388088 is a `hidden beast` number, since 1 + 1 + 187 + 1 + 388 + 0 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2957778 + ... + 2995361.

Almost surely, 2^111871388088 is an apocalyptic number.

111871388088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

111871388088 is an abundant number, since it is smaller than the sum of its proper divisors (212277084912).

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

111871388088 is a wasteful number, since it uses less digits than its factorization.

111871388088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5953186 (or 5953173 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 54.

The spelling of 111871388088 in words is "one hundred eleven billion, eight hundred seventy-one million, three hundred eighty-eight thousand, eighty-eight".