23310220031 has 4 divisors (see below), whose sum is σ = 26640251472. Its totient is φ = 19980188592.

The previous prime is 23310220009. The next prime is 23310220099. The reversal of 23310220031 is 13002201332.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23310220031 - 2¹⁴ = 23310203647 is a prime.

It is a super-2 number, since 2×23310220031² (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 = 23310219991 and 23310220009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23315220031) 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, 1665015710 + ... + 1665015723.

It is an arithmetic number, because the mean of its divisors is an integer number (6660062868).

Almost surely, 2^23310220031 is an apocalyptic number.

23310220031 is a deficient number, since it is larger than the sum of its proper divisors (3330031441).

23310220031 is an equidigital number, since it uses as much as digits as its factorization.

23310220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330031440.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23310220031 its reverse (13002201332), we get a palindrome (36312421363).

The spelling of 23310220031 in words is "twenty-three billion, three hundred ten million, two hundred twenty thousand, thirty-one".