223312123231 has 2 divisors, whose sum is σ = 223312123232. Its totient is φ = 223312123230.

The previous prime is 223312123201. The next prime is 223312123259. The reversal of 223312123231 is 132321213322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223312123231 - 2¹¹ = 223312121183 is a prime.

It is a super-2 number, since 2×223312123231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223312123196 and 223312123205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223312123201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111656061615 + 111656061616.

It is an arithmetic number, because the mean of its divisors is an integer number (111656061616).

Almost surely, 2^223312123231 is an apocalyptic number.

223312123231 is a deficient number, since it is larger than the sum of its proper divisors (1).

223312123231 is an equidigital number, since it uses as much as digits as its factorization.

223312123231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

Adding to 223312123231 its reverse (132321213322), we get a palindrome (355633336553).

Subtracting from 223312123231 its reverse (132321213322), we obtain a palindrome (90990909909).

The spelling of 223312123231 in words is "two hundred twenty-three billion, three hundred twelve million, one hundred twenty-three thousand, two hundred thirty-one".