23012122031 has 4 divisors (see below), whose sum is σ = 23012882592. Its totient is φ = 23011361472.

The previous prime is 23012121983. The next prime is 23012122033. The reversal of 23012122031 is 13022121032.

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 23012122031 - 2³⁰ = 21938380207 is a prime.

It is a super-2 number, since 2×23012122031² (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 (23012122033) 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, 332930 + ... + 396063.

It is an arithmetic number, because the mean of its divisors is an integer number (5753220648).

Almost surely, 2^23012122031 is an apocalyptic number.

23012122031 is a deficient number, since it is larger than the sum of its proper divisors (760561).

23012122031 is an equidigital number, since it uses as much as digits as its factorization.

23012122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760560.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23012122031 its reverse (13022121032), we get a palindrome (36034243063).

Subtracting from 23012122031 its reverse (13022121032), we obtain a palindrome (9990000999).

The spelling of 23012122031 in words is "twenty-three billion, twelve million, one hundred twenty-two thousand, thirty-one".