315212320125 has 80 divisors (see below), whose sum is σ = 588222066432. Its totient is φ = 167949352800.

The previous prime is 315212320103. The next prime is 315212320169. The reversal of 315212320125 is 521023212513.

315212320125 is a `hidden beast` number, since 3 + 1 + 5 + 212 + 320 + 125 = 666.

It is not a de Polignac number, because 315212320125 - 2¹⁴ = 315212303741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10748232 + ... + 10777518.

Almost surely, 2^315212320125 is an apocalyptic number.

It is an amenable number.

315212320125 is a deficient number, since it is larger than the sum of its proper divisors (273009746307).

315212320125 is a wasteful number, since it uses less digits than its factorization.

315212320125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30377 (or 30358 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 315212320125 its reverse (521023212513), we get a palindrome (836235532638).

The spelling of 315212320125 in words is "three hundred fifteen billion, two hundred twelve million, three hundred twenty thousand, one hundred twenty-five".