13256031315 has 16 divisors (see below), whose sum is σ = 21211481088. Its totient is φ = 7069273056.

The previous prime is 13256031263. The next prime is 13256031353. The reversal of 13256031315 is 51313065231.

It is not a de Polignac number, because 13256031315 - 2⁶ = 13256031251 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182622 + ... + 244668.

It is an arithmetic number, because the mean of its divisors is an integer number (1325717568).

Almost surely, 2^13256031315 is an apocalyptic number.

13256031315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13256031315 is a deficient number, since it is larger than the sum of its proper divisors (7955449773).

13256031315 is a wasteful number, since it uses less digits than its factorization.

13256031315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76298.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 13256031315 its reverse (51313065231), we get a palindrome (64569096546).

The spelling of 13256031315 in words is "thirteen billion, two hundred fifty-six million, thirty-one thousand, three hundred fifteen".