313113212012 has 48 divisors (see below), whose sum is σ = 586105178400. Its totient is φ = 145843584000.

The previous prime is 313113212011. The next prime is 313113212023. The reversal of 313113212012 is 210212311313.

It is a happy number.

It is a super-2 number, since 2×313113212012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313113212011) 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, 35015462 + ... + 35024402.

It is an arithmetic number, because the mean of its divisors is an integer number (12210524550).

Almost surely, 2^313113212012 is an apocalyptic number.

It is an amenable number.

313113212012 is a deficient number, since it is larger than the sum of its proper divisors (272991966388).

313113212012 is a wasteful number, since it uses less digits than its factorization.

313113212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14162 (or 14160 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 313113212012 its reverse (210212311313), we get a palindrome (523325523325).

The spelling of 313113212012 in words is "three hundred thirteen billion, one hundred thirteen million, two hundred twelve thousand, twelve".