23013202523 has 4 divisors (see below), whose sum is σ = 23337332208. Its totient is φ = 22689072840.

The previous prime is 23013202507. The next prime is 23013202573. The reversal of 23013202523 is 32520231032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23013202523 - 2⁴ = 23013202507 is a prime.

It is a super-2 number, since 2×23013202523² (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 (23013202573) 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, 162064736 + ... + 162064877.

It is an arithmetic number, because the mean of its divisors is an integer number (5834333052).

Almost surely, 2^23013202523 is an apocalyptic number.

23013202523 is a deficient number, since it is larger than the sum of its proper divisors (324129685).

23013202523 is an equidigital number, since it uses as much as digits as its factorization.

23013202523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324129684.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 23013202523 its reverse (32520231032), we get a palindrome (55533433555).

The spelling of 23013202523 in words is "twenty-three billion, thirteen million, two hundred two thousand, five hundred twenty-three".