315631122404 has 48 divisors (see below), whose sum is σ = 630429546096. Its totient is φ = 136977100800.

The previous prime is 315631122397. The next prime is 315631122427. The reversal of 315631122404 is 404221136513.

It can be written as a sum of positive squares in 8 ways, for example, as 49416400804 + 266214721600 = 222298^2 + 515960^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769664 + ... + 1106184.

It is an arithmetic number, because the mean of its divisors is an integer number (13133948877).

Almost surely, 2^315631122404 is an apocalyptic number.

315631122404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

315631122404 is a deficient number, since it is larger than the sum of its proper divisors (314798423692).

315631122404 is a wasteful number, since it uses less digits than its factorization.

315631122404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337616 (or 337614 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 315631122404 its reverse (404221136513), we get a palindrome (719852258917).

The spelling of 315631122404 in words is "three hundred fifteen billion, six hundred thirty-one million, one hundred twenty-two thousand, four hundred four".