312315253131 has 16 divisors (see below), whose sum is σ = 476843961600. Its totient is φ = 178115232288.

The previous prime is 312315253099. The next prime is 312315253183. The reversal of 312315253131 is 131352513213.

It is not a de Polignac number, because 312315253131 - 2⁵ = 312315253099 is a prime.

It is a super-2 number, since 2×312315253131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312315258131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14598501 + ... + 14619878.

It is an arithmetic number, because the mean of its divisors is an integer number (29802747600).

Almost surely, 2^312315253131 is an apocalyptic number.

312315253131 is a deficient number, since it is larger than the sum of its proper divisors (164528708469).

312315253131 is a wasteful number, since it uses less digits than its factorization.

312315253131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29218898.

The product of its digits is 8100, while the sum is 30.

Adding to 312315253131 its reverse (131352513213), we get a palindrome (443667766344).

The spelling of 312315253131 in words is "three hundred twelve billion, three hundred fifteen million, two hundred fifty-three thousand, one hundred thirty-one".