312310312013 has 16 divisors (see below), whose sum is σ = 364366396800. Its totient is φ = 267579805248.

The previous prime is 312310312009. The next prime is 312310312033. The reversal of 312310312013 is 310213013213.

It is not a de Polignac number, because 312310312013 - 2² = 312310312009 is a prime.

It is a super-2 number, since 2×312310312013² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312310312033) 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, 611045 + ... + 998997.

It is an arithmetic number, because the mean of its divisors is an integer number (22772899800).

Almost surely, 2^312310312013 is an apocalyptic number.

It is an amenable number.

312310312013 is a deficient number, since it is larger than the sum of its proper divisors (52056084787).

312310312013 is an equidigital number, since it uses as much as digits as its factorization.

312310312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390321 (or 390307 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 312310312013 its reverse (310213013213), we get a palindrome (622523325226).

The spelling of 312310312013 in words is "three hundred twelve billion, three hundred ten million, three hundred twelve thousand, thirteen".