23020220231 has 2 divisors, whose sum is σ = 23020220232. Its totient is φ = 23020220230.

The previous prime is 23020220227. The next prime is 23020220297. The reversal of 23020220231 is 13202202032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23020220231 - 2² = 23020220227 is a prime.

It is a super-2 number, since 2×23020220231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23020220221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510110115 + 11510110116.

It is an arithmetic number, because the mean of its divisors is an integer number (11510110116).

Almost surely, 2^23020220231 is an apocalyptic number.

23020220231 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020220231 is an equidigital number, since it uses as much as digits as its factorization.

23020220231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 23020220231 its reverse (13202202032), we get a palindrome (36222422263).

The spelling of 23020220231 in words is "twenty-three billion, twenty million, two hundred twenty thousand, two hundred thirty-one".