23115243321513 has 64 divisors (see below), whose sum is σ = 39387999436800. Its totient is φ = 13124133501120.

The previous prime is 23115243321349. The next prime is 23115243321529. The reversal of 23115243321513 is 31512334251132.

23115243321513 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 5 + 2 + 433 + 215 + 1 + 3 = 666.

It is not a de Polignac number, because 23115243321513 - 2²⁴ = 23115226544297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23115243321113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30417108 + ... + 31167786.

It is an arithmetic number, because the mean of its divisors is an integer number (615437491200).

Almost surely, 2^{23115243321513} is an apocalyptic number.

It is an amenable number.

23115243321513 is a deficient number, since it is larger than the sum of its proper divisors (16272756115287).

23115243321513 is a wasteful number, since it uses less digits than its factorization.

23115243321513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751739 (or 751733 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

Adding to 23115243321513 its reverse (31512334251132), we get a palindrome (54627577572645).

The spelling of 23115243321513 in words is "twenty-three trillion, one hundred fifteen billion, two hundred forty-three million, three hundred twenty-one thousand, five hundred thirteen".