23220510431 has 4 divisors (see below), whose sum is σ = 23848091832. Its totient is φ = 22592929032.

The previous prime is 23220510421. The next prime is 23220510437. The reversal of 23220510431 is 13401502232.

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 23220510431 - 2¹⁴ = 23220494047 is a prime.

It is a super-2 number, since 2×23220510431² (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 = 23220510397 and 23220510406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220510437) 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, 313790645 + ... + 313790718.

It is an arithmetic number, because the mean of its divisors is an integer number (5962022958).

Almost surely, 2^23220510431 is an apocalyptic number.

23220510431 is a deficient number, since it is larger than the sum of its proper divisors (627581401).

23220510431 is an equidigital number, since it uses as much as digits as its factorization.

23220510431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627581400.

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 23220510431 in words is "twenty-three billion, two hundred twenty million, five hundred ten thousand, four hundred thirty-one".