313130211312 has 20 divisors (see below), whose sum is σ = 808919712680. Its totient is φ = 104376737088.

The previous prime is 313130211263. The next prime is 313130211337. The reversal of 313130211312 is 213112031313.

It is a happy number.

It is a super-2 number, since 2×313130211312² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3261772987 + ... + 3261773082.

It is an arithmetic number, because the mean of its divisors is an integer number (40445985634).

Almost surely, 2^313130211312 is an apocalyptic number.

It is an amenable number.

313130211312 is an abundant number, since it is smaller than the sum of its proper divisors (495789501368).

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

313130211312 is a wasteful number, since it uses less digits than its factorization.

313130211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523546080 (or 6523546074 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 313130211312 its reverse (213112031313), we get a palindrome (526242242625).

The spelling of 313130211312 in words is "three hundred thirteen billion, one hundred thirty million, two hundred eleven thousand, three hundred twelve".