315531135512 has 32 divisors (see below), whose sum is σ = 606194772480. Its totient is φ = 153889078560.

The previous prime is 315531135463. The next prime is 315531135533. The reversal of 315531135512 is 215531135513.

It is a congruent number.

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, 361664 + ... + 872847.

It is an arithmetic number, because the mean of its divisors is an integer number (18943586640).

Almost surely, 2^315531135512 is an apocalyptic number.

It is an amenable number.

315531135512 is a deficient number, since it is larger than the sum of its proper divisors (290663636968).

315531135512 is a wasteful number, since it uses less digits than its factorization.

315531135512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235303 (or 1235299 counting only the distinct ones).

The product of its digits is 33750, while the sum is 35.

Subtracting from 315531135512 its reverse (215531135513), we obtain a palindrome (99999999999).

The spelling of 315531135512 in words is "three hundred fifteen billion, five hundred thirty-one million, one hundred thirty-five thousand, five hundred twelve".