12322431227 has 2 divisors, whose sum is σ = 12322431228. Its totient is φ = 12322431226.

The previous prime is 12322431203. The next prime is 12322431257. The reversal of 12322431227 is 72213422321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12322431227 is a prime.

It is a super-2 number, since 2×12322431227² (a number of 21 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 12322431227.

It is not a weakly prime, because it can be changed into another prime (12322431257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161215613 + 6161215614.

It is an arithmetic number, because the mean of its divisors is an integer number (6161215614).

Almost surely, 2^12322431227 is an apocalyptic number.

12322431227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12322431227 is an equidigital number, since it uses as much as digits as its factorization.

12322431227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 29.

Adding to 12322431227 its reverse (72213422321), we get a palindrome (84535853548).

It can be divided in two parts, 123224 and 31227, that added together give a palindrome (154451).

The spelling of 12322431227 in words is "twelve billion, three hundred twenty-two million, four hundred thirty-one thousand, two hundred twenty-seven".