23321011031 has 4 divisors (see below), whose sum is σ = 23321322864. Its totient is φ = 23320699200.

The previous prime is 23321010991. The next prime is 23321011037. The reversal of 23321011031 is 13011012332.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23321011031 - 2²⁶ = 23253902167 is a prime.

It is a super-2 number, since 2×23321011031² (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 (23321011037) 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, 30791 + ... + 218151.

It is an arithmetic number, because the mean of its divisors is an integer number (5830330716).

Almost surely, 2^23321011031 is an apocalyptic number.

23321011031 is a deficient number, since it is larger than the sum of its proper divisors (311833).

23321011031 is a wasteful number, since it uses less digits than its factorization.

23321011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311832.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23321011031 its reverse (13011012332), we get a palindrome (36332023363).

The spelling of 23321011031 in words is "twenty-three billion, three hundred twenty-one million, eleven thousand, thirty-one".