312343728372 has 120 divisors (see below), whose sum is σ = 886263504896. Its totient is φ = 95348860992.

The previous prime is 312343728349. The next prime is 312343728379. The reversal of 312343728372 is 273827343213.

312343728372 is a `hidden beast` number, since 3 + 123 + 437 + 28 + 3 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312343728379) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 242973 + ... + 826875.

Almost surely, 2^312343728372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312343728372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443131752448).

312343728372 is an abundant number, since it is smaller than the sum of its proper divisors (573919776524).

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

312343728372 is a wasteful number, since it uses less digits than its factorization.

312343728372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584059 (or 584048 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The spelling of 312343728372 in words is "three hundred twelve billion, three hundred forty-three million, seven hundred twenty-eight thousand, three hundred seventy-two".