23122020331 has 4 divisors (see below), whose sum is σ = 24482139192. Its totient is φ = 21761901472.

The previous prime is 23122020307. The next prime is 23122020347. The reversal of 23122020331 is 13302022132.

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 23122020331 - 2⁷ = 23122020203 is a prime.

It is a super-2 number, since 2×23122020331² (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 = 23122020299 and 23122020308.

It is not an unprimeable number, because it can be changed into a prime (23122020391) 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, 680059405 + ... + 680059438.

It is an arithmetic number, because the mean of its divisors is an integer number (6120534798).

Almost surely, 2^23122020331 is an apocalyptic number.

23122020331 is a deficient number, since it is larger than the sum of its proper divisors (1360118861).

23122020331 is a wasteful number, since it uses less digits than its factorization.

23122020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360118860.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23122020331 its reverse (13302022132), we get a palindrome (36424042463).

The spelling of 23122020331 in words is "twenty-three billion, one hundred twenty-two million, twenty thousand, three hundred thirty-one".