312693221136372 has 24 divisors (see below), whose sum is σ = 729617833140000. Its totient is φ = 104231028404256.

The previous prime is 312693221136371. The next prime is 312693221136397. The reversal of 312693221136372 is 273631122396213.

It is a super-3 number, since 3×312693221136372³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312693221136371) 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, 34467379 + ... + 42583877.

It is an arithmetic number, because the mean of its divisors is an integer number (30400743047500).

Almost surely, 2^{312693221136372} is an apocalyptic number.

It is an amenable number.

312693221136372 is an abundant number, since it is smaller than the sum of its proper divisors (416924612003628).

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

312693221136372 is a wasteful number, since it uses less digits than its factorization.

312693221136372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11326975 (or 11326973 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 51.

The spelling of 312693221136372 in words is "three hundred twelve trillion, six hundred ninety-three billion, two hundred twenty-one million, one hundred thirty-six thousand, three hundred seventy-two".