312031310111344 has 80 divisors (see below), whose sum is σ = 669302513326080. Its totient is φ = 140337623312640.

The previous prime is 312031310111329. The next prime is 312031310111429. The reversal of 312031310111344 is 443111013130213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311861692 + ... + 312860635.

It is an arithmetic number, because the mean of its divisors is an integer number (8366281416576).

Almost surely, 2^{312031310111344} is an apocalyptic number.

It is an amenable number.

312031310111344 is an abundant number, since it is smaller than the sum of its proper divisors (357271203214736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312031310111344 is a wasteful number, since it uses less digits than its factorization.

312031310111344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624722438 (or 624722432 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 312031310111344 its reverse (443111013130213), we get a palindrome (755142323241557).

The spelling of 312031310111344 in words is "three hundred twelve trillion, thirty-one billion, three hundred ten million, one hundred eleven thousand, three hundred forty-four".