312113133213 has 16 divisors (see below), whose sum is σ = 476971584000. Its totient is φ = 177836379696.

The previous prime is 312113133179. The next prime is 312113133239. The reversal of 312113133213 is 312331311213.

It is not a de Polignac number, because 312113133213 - 2¹² = 312113129117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312113133263) 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, 21408463 + ... + 21423036.

It is an arithmetic number, because the mean of its divisors is an integer number (29810724000).

Almost surely, 2^312113133213 is an apocalyptic number.

It is an amenable number.

312113133213 is a deficient number, since it is larger than the sum of its proper divisors (164858450787).

312113133213 is a wasteful number, since it uses less digits than its factorization.

312113133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42831856.

The product of its digits is 972, while the sum is 24.

Adding to 312113133213 its reverse (312331311213), we get a palindrome (624444444426).

The spelling of 312113133213 in words is "three hundred twelve billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred thirteen".