315512121045231 has 12 divisors (see below), whose sum is σ = 497170614980520. Its totient is φ = 191219467300080.

The previous prime is 315512121045193. The next prime is 315512121045271. The reversal of 315512121045231 is 132540121215513.

315512121045231 is a `hidden beast` number, since 3 + 1 + 5 + 5 + 1 + 2 + 121 + 0 + 4 + 523 + 1 = 666.

It is not a de Polignac number, because 315512121045231 - 2³⁴ = 315494941176047 is a prime.

It is a super-2 number, since 2×315512121045231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315512121045271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1593495560736 + ... + 1593495560933.

It is an arithmetic number, because the mean of its divisors is an integer number (41430884581710).

Almost surely, 2^{315512121045231} is an apocalyptic number.

315512121045231 is a deficient number, since it is larger than the sum of its proper divisors (181658493935289).

315512121045231 is a wasteful number, since it uses less digits than its factorization.

315512121045231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186991121686 (or 3186991121683 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 315512121045231 in words is "three hundred fifteen trillion, five hundred twelve billion, one hundred twenty-one million, forty-five thousand, two hundred thirty-one".