23501513233 has 4 divisors (see below), whose sum is σ = 25638014448. Its totient is φ = 21365012020.

The previous prime is 23501513173. The next prime is 23501513251. The reversal of 23501513233 is 33231510532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23501513233 - 2¹⁷ = 23501382161 is a prime.

It is a super-2 number, since 2×23501513233² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23501513293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068250591 + ... + 1068250612.

It is an arithmetic number, because the mean of its divisors is an integer number (6409503612).

Almost surely, 2^23501513233 is an apocalyptic number.

It is an amenable number.

23501513233 is a deficient number, since it is larger than the sum of its proper divisors (2136501215).

23501513233 is a wasteful number, since it uses less digits than its factorization.

23501513233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136501214.

The product of its (nonzero) digits is 8100, while the sum is 28.

The spelling of 23501513233 in words is "twenty-three billion, five hundred one million, five hundred thirteen thousand, two hundred thirty-three".