23001233231 has 4 divisors (see below), whose sum is σ = 23007499152. Its totient is φ = 22994967312.

The previous prime is 23001233221. The next prime is 23001233239. The reversal of 23001233231 is 13233210032.

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 23001233231 - 2²² = 22997038927 is a prime.

It is a super-2 number, since 2×23001233231² (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 (23001233239) 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, 3127451 + ... + 3134796.

It is an arithmetic number, because the mean of its divisors is an integer number (5751874788).

Almost surely, 2^23001233231 is an apocalyptic number.

23001233231 is a deficient number, since it is larger than the sum of its proper divisors (6265921).

23001233231 is an equidigital number, since it uses as much as digits as its factorization.

23001233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265920.

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

Adding to 23001233231 its reverse (13233210032), we get a palindrome (36234443263).

The spelling of 23001233231 in words is "twenty-three billion, one million, two hundred thirty-three thousand, two hundred thirty-one".