423313321231 has 2 divisors, whose sum is σ = 423313321232. Its totient is φ = 423313321230.

The previous prime is 423313321219. The next prime is 423313321247. The reversal of 423313321231 is 132123313324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423313321231 - 2⁷ = 423313321103 is a prime.

It is a super-2 number, since 2×423313321231² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423313321231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423313321261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211656660615 + 211656660616.

It is an arithmetic number, because the mean of its divisors is an integer number (211656660616).

Almost surely, 2^423313321231 is an apocalyptic number.

423313321231 is a deficient number, since it is larger than the sum of its proper divisors (1).

423313321231 is an equidigital number, since it uses as much as digits as its factorization.

423313321231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 28.

Adding to 423313321231 its reverse (132123313324), we get a palindrome (555436634555).

The spelling of 423313321231 in words is "four hundred twenty-three billion, three hundred thirteen million, three hundred twenty-one thousand, two hundred thirty-one".