23513052403 has 4 divisors (see below), whose sum is σ = 24086541528. Its totient is φ = 22939563280.

The previous prime is 23513052377. The next prime is 23513052443. The reversal of 23513052403 is 30425031532.

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 23513052403 - 2²⁵ = 23479497971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23513052443) 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, 286744501 + ... + 286744582.

It is an arithmetic number, because the mean of its divisors is an integer number (6021635382).

Almost surely, 2^23513052403 is an apocalyptic number.

23513052403 is a deficient number, since it is larger than the sum of its proper divisors (573489125).

23513052403 is an equidigital number, since it uses as much as digits as its factorization.

23513052403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573489124.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 23513052403 its reverse (30425031532), we get a palindrome (53938083935).

The spelling of 23513052403 in words is "twenty-three billion, five hundred thirteen million, fifty-two thousand, four hundred three".