312331112013 has 8 divisors (see below), whose sum is σ = 416659180608. Its totient is φ = 208111892384.

The previous prime is 312331112003. The next prime is 312331112021. The reversal of 312331112013 is 310211133213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312331112013 - 2²⁵ = 312297557581 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312331112003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27205545 + ... + 27217022.

It is an arithmetic number, because the mean of its divisors is an integer number (52082397576).

Almost surely, 2^312331112013 is an apocalyptic number.

It is an amenable number.

312331112013 is a deficient number, since it is larger than the sum of its proper divisors (104328068595).

312331112013 is a wasteful number, since it uses less digits than its factorization.

312331112013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54424483.

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

Adding to 312331112013 its reverse (310211133213), we get a palindrome (622542245226).

The spelling of 312331112013 in words is "three hundred twelve billion, three hundred thirty-one million, one hundred twelve thousand, thirteen".