312131130102 has 40 divisors (see below), whose sum is σ = 762987211272. Its totient is φ = 94585190400.

The previous prime is 312131130079. The next prime is 312131130119. The reversal of 312131130102 is 201031131213.

312131130102 is a `hidden beast` number, since 31 + 21 + 311 + 301 + 0 + 2 = 666.

312131130102 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87577099 + ... + 87580662.

Almost surely, 2^312131130102 is an apocalyptic number.

312131130102 is an abundant number, since it is smaller than the sum of its proper divisors (450856081170).

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

312131130102 is a wasteful number, since it uses less digits than its factorization.

312131130102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175157786 (or 175157777 counting only the distinct ones).

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

Adding to 312131130102 its reverse (201031131213), we get a palindrome (513162261315).

The spelling of 312131130102 in words is "three hundred twelve billion, one hundred thirty-one million, one hundred thirty thousand, one hundred two".