312113122013 has 16 divisors (see below), whose sum is σ = 389744793600. Its totient is φ = 242819564400.

The previous prime is 312113122007. The next prime is 312113122039. The reversal of 312113122013 is 310221311213.

It is a happy number.

It is not a de Polignac number, because 312113122013 - 2⁸ = 312113121757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312113122003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3163313 + ... + 3260486.

It is an arithmetic number, because the mean of its divisors is an integer number (24359049600).

Almost surely, 2^312113122013 is an apocalyptic number.

It is an amenable number.

312113122013 is a deficient number, since it is larger than the sum of its proper divisors (77631671587).

312113122013 is a wasteful number, since it uses less digits than its factorization.

312113122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6424448.

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

Adding to 312113122013 its reverse (310221311213), we get a palindrome (622334433226).

The spelling of 312113122013 in words is "three hundred twelve billion, one hundred thirteen million, one hundred twenty-two thousand, thirteen".