312113020131 has 12 divisors (see below), whose sum is σ = 491814456120. Its totient is φ = 189159406080.

The previous prime is 312113019997. The next prime is 312113020183. The reversal of 312113020131 is 131020311213.

It is not a de Polignac number, because 312113020131 - 2²⁹ = 311576149219 is a prime.

It is a super-2 number, since 2×312113020131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312113020831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1576328286 + ... + 1576328483.

It is an arithmetic number, because the mean of its divisors is an integer number (40984538010).

Almost surely, 2^312113020131 is an apocalyptic number.

312113020131 is a deficient number, since it is larger than the sum of its proper divisors (179701435989).

312113020131 is a wasteful number, since it uses less digits than its factorization.

312113020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152656786 (or 3152656783 counting only the distinct ones).

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

Adding to 312113020131 its reverse (131020311213), we get a palindrome (443133331344).

The spelling of 312113020131 in words is "three hundred twelve billion, one hundred thirteen million, twenty thousand, one hundred thirty-one".