23231123231 has 2 divisors, whose sum is σ = 23231123232. Its totient is φ = 23231123230.

The previous prime is 23231123219. The next prime is 23231123309. The reversal of 23231123231 is 13232113232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23231123231 - 2¹⁰ = 23231122207 is a prime.

It is a super-2 number, since 2×23231123231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23231123197 and 23231123206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23231123131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615561615 + 11615561616.

It is an arithmetic number, because the mean of its divisors is an integer number (11615561616).

Almost surely, 2^23231123231 is an apocalyptic number.

23231123231 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231123231 is an equidigital number, since it uses as much as digits as its factorization.

23231123231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 23.

Adding to 23231123231 its reverse (13232113232), we get a palindrome (36463236463).

Subtracting from 23231123231 its reverse (13232113232), we obtain a palindrome (9999009999).

The spelling of 23231123231 in words is "twenty-three billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty-one".