315023220155523 has 64 divisors (see below), whose sum is σ = 470445372375552. Its totient is φ = 185915660206080.

The previous prime is 315023220155507. The next prime is 315023220155603. The reversal of 315023220155523 is 325551022320513.

It is not a de Polignac number, because 315023220155523 - 2⁴ = 315023220155507 is a prime.

It is a super-2 number, since 2×315023220155523² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (315023220155503) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 46376140 + ... + 52733222.

It is an arithmetic number, because the mean of its divisors is an integer number (7350708943368).

Almost surely, 2^{315023220155523} is an apocalyptic number.

315023220155523 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

315023220155523 is a deficient number, since it is larger than the sum of its proper divisors (155422152220029).

315023220155523 is a wasteful number, since it uses less digits than its factorization.

315023220155523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357444.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 315023220155523 in words is "three hundred fifteen trillion, twenty-three billion, two hundred twenty million, one hundred fifty-five thousand, five hundred twenty-three".