23013320231 has 4 divisors (see below), whose sum is σ = 25105440264. Its totient is φ = 20921200200.

The previous prime is 23013320221. The next prime is 23013320249. The reversal of 23013320231 is 13202331032.

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 23013320231 - 2⁶ = 23013320167 is a prime.

It is a super-2 number, since 2×23013320231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013320221) 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, 1046060000 + ... + 1046060021.

It is an arithmetic number, because the mean of its divisors is an integer number (6276360066).

Almost surely, 2^23013320231 is an apocalyptic number.

23013320231 is a deficient number, since it is larger than the sum of its proper divisors (2092120033).

23013320231 is a wasteful number, since it uses less digits than its factorization.

23013320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092120032.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23013320231 its reverse (13202331032), we get a palindrome (36215651263).

The spelling of 23013320231 in words is "twenty-three billion, thirteen million, three hundred twenty thousand, two hundred thirty-one".