131217357315 has 16 divisors (see below), whose sum is σ = 229033933056. Its totient is φ = 63620536800.

The previous prime is 131217357269. The next prime is 131217357329. The reversal of 131217357315 is 513753712131.

It is not a de Polignac number, because 131217357315 - 2¹⁴ = 131217340931 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, 397628191 + ... + 397628520.

It is an arithmetic number, because the mean of its divisors is an integer number (14314620816).

Almost surely, 2^131217357315 is an apocalyptic number.

131217357315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131217357315 is a deficient number, since it is larger than the sum of its proper divisors (97816575741).

131217357315 is a wasteful number, since it uses less digits than its factorization.

131217357315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795256730.

The product of its digits is 66150, while the sum is 39.

The spelling of 131217357315 in words is "one hundred thirty-one billion, two hundred seventeen million, three hundred fifty-seven thousand, three hundred fifteen".