131231110032 has 120 divisors (see below), whose sum is σ = 421739628960. Its totient is φ = 37673994240.

The previous prime is 131231109983. The next prime is 131231110061. The reversal of 131231110032 is 230011132131.

131231110032 is a `hidden beast` number, since 1 + 312 + 311 + 10 + 0 + 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 = 131231109987 and 131231110014.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2150113 + ... + 2210304.

It is an arithmetic number, because the mean of its divisors is an integer number (3514496908).

Almost surely, 2^131231110032 is an apocalyptic number.

131231110032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131231110032 is an abundant number, since it is smaller than the sum of its proper divisors (290508518928).

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

131231110032 is a wasteful number, since it uses less digits than its factorization.

131231110032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360461 (or 4360452 counting only the distinct ones).

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

Adding to 131231110032 its reverse (230011132131), we get a palindrome (361242242163).

The spelling of 131231110032 in words is "one hundred thirty-one billion, two hundred thirty-one million, one hundred ten thousand, thirty-two".