23131305244215 has 128 divisors (see below), whose sum is σ = 47806142115840. Its totient is φ = 10392521356800.

The previous prime is 23131305244199. The next prime is 23131305244219. The reversal of 23131305244215 is 51244250313132.

23131305244215 is a `hidden beast` number, since 2 + 3 + 131 + 30 + 52 + 442 + 1 + 5 = 666.

It is not a de Polignac number, because 23131305244215 - 2⁴ = 23131305244199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23131305244215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131305244219) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 71144670 + ... + 71469060.

It is an arithmetic number, because the mean of its divisors is an integer number (373485485280).

Almost surely, 2^{23131305244215} is an apocalyptic number.

23131305244215 is an abundant number, since it is smaller than the sum of its proper divisors (24674836871625).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23131305244215 is a wasteful number, since it uses less digits than its factorization.

23131305244215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325710 (or 325704 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 23131305244215 its reverse (51244250313132), we get a palindrome (74375555557347).

The spelling of 23131305244215 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred five million, two hundred forty-four thousand, two hundred fifteen".