312403547778112 has 56 divisors (see below), whose sum is σ = 708516286596800. Its totient is φ = 133881627962880.

The previous prime is 312403547778043. The next prime is 312403547778163. The reversal of 312403547778112 is 211877745304213.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×312403547778112² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3882339 + ... + 25295842.

Almost surely, 2^{312403547778112} is an apocalyptic number.

312403547778112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312403547778112 is an abundant number, since it is smaller than the sum of its proper divisors (396112738818688).

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

312403547778112 is a wasteful number, since it uses less digits than its factorization.

312403547778112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29202099 (or 29202089 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 312403547778112 in words is "three hundred twelve trillion, four hundred three billion, five hundred forty-seven million, seven hundred seventy-eight thousand, one hundred twelve".