23013323513 has 4 divisors (see below), whose sum is σ = 23048893440. Its totient is φ = 22977753588.

The previous prime is 23013323461. The next prime is 23013323519. The reversal of 23013323513 is 31532331032.

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 a cyclic number.

It is not a de Polignac number, because 23013323513 - 2¹⁸ = 23013061369 is a prime.

It is a super-2 number, since 2×23013323513² (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 (23013323519) 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, 17783993 + ... + 17785286.

It is an arithmetic number, because the mean of its divisors is an integer number (5762223360).

Almost surely, 2^23013323513 is an apocalyptic number.

It is an amenable number.

23013323513 is a deficient number, since it is larger than the sum of its proper divisors (35569927).

23013323513 is an equidigital number, since it uses as much as digits as its factorization.

23013323513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35569926.

The product of its (nonzero) digits is 4860, while the sum is 26.

Adding to 23013323513 its reverse (31532331032), we get a palindrome (54545654545).

The spelling of 23013323513 in words is "twenty-three billion, thirteen million, three hundred twenty-three thousand, five hundred thirteen".