312331311023 has 8 divisors (see below), whose sum is σ = 319734674688. Its totient is φ = 304934304024.

The previous prime is 312331311013. The next prime is 312331311029. The reversal of 312331311023 is 320113133213.

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 312331311023 - 2²⁸ = 312062875567 is a prime.

It is a super-2 number, since 2×312331311023² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312331311023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312331311029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489661 + ... + 1686342.

It is an arithmetic number, because the mean of its divisors is an integer number (39966834336).

Almost surely, 2^312331311023 is an apocalyptic number.

312331311023 is a deficient number, since it is larger than the sum of its proper divisors (7403363665).

312331311023 is a wasteful number, since it uses less digits than its factorization.

312331311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178333.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 312331311023 its reverse (320113133213), we get a palindrome (632444444236).

The spelling of 312331311023 in words is "three hundred twelve billion, three hundred thirty-one million, three hundred eleven thousand, twenty-three".