315612403231305 has 32 divisors (see below), whose sum is σ = 505322944761600. Its totient is φ = 168212255904000.

The previous prime is 315612403231267. The next prime is 315612403231313. The reversal of 315612403231305 is 503132304216513.

It is not a de Polignac number, because 315612403231305 - 2⁸ = 315612403231049 is a prime.

It is a super-2 number, since 2×315612403231305² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 737520579 + ... + 737948391.

It is an arithmetic number, because the mean of its divisors is an integer number (15791342023800).

Almost surely, 2^{315612403231305} is an apocalyptic number.

It is an amenable number.

315612403231305 is a deficient number, since it is larger than the sum of its proper divisors (189710541530295).

315612403231305 is a wasteful number, since it uses less digits than its factorization.

315612403231305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461121.

The product of its (nonzero) digits is 194400, while the sum is 39.

Adding to 315612403231305 its reverse (503132304216513), we get a palindrome (818744707447818).

The spelling of 315612403231305 in words is "three hundred fifteen trillion, six hundred twelve billion, four hundred three million, two hundred thirty-one thousand, three hundred five".