23330431231 has 4 divisors (see below), whose sum is σ = 23498276200. Its totient is φ = 23162586264.

The previous prime is 23330431211. The next prime is 23330431237. The reversal of 23330431231 is 13213403332.

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 23330431231 - 2⁵ = 23330431199 is a prime.

It is a super-2 number, since 2×23330431231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23330431196 and 23330431205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23330431237) 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, 83922276 + ... + 83922553.

It is an arithmetic number, because the mean of its divisors is an integer number (5874569050).

Almost surely, 2^23330431231 is an apocalyptic number.

23330431231 is a deficient number, since it is larger than the sum of its proper divisors (167844969).

23330431231 is a wasteful number, since it uses less digits than its factorization.

23330431231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167844968.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 23330431231 its reverse (13213403332), we get a palindrome (36543834563).

The spelling of 23330431231 in words is "twenty-three billion, three hundred thirty million, four hundred thirty-one thousand, two hundred thirty-one".