111312031032 has 64 divisors (see below), whose sum is σ = 309716640000. Its totient is φ = 37042024032.

The previous prime is 111312031009. The next prime is 111312031043. The reversal of 111312031032 is 230130213111.

111312031032 is a `hidden beast` number, since 1 + 11 + 312 + 0 + 310 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111312030996 and 111312031014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300778 + ... + 559545.

It is an arithmetic number, because the mean of its divisors is an integer number (4839322500).

Almost surely, 2^111312031032 is an apocalyptic number.

111312031032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111312031032 is an abundant number, since it is smaller than the sum of its proper divisors (198404608968).

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

111312031032 is a wasteful number, since it uses less digits than its factorization.

111312031032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860937 (or 860927 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 111312031032 its reverse (230130213111), we get a palindrome (341442244143).

The spelling of 111312031032 in words is "one hundred eleven billion, three hundred twelve million, thirty-one thousand, thirty-two".