12244403231 has 2 divisors, whose sum is σ = 12244403232. Its totient is φ = 12244403230.

The previous prime is 12244403201. The next prime is 12244403239. The reversal of 12244403231 is 13230444221.

It is a strong prime.

It is an emirp because it is prime and its reverse (13230444221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12244403231 - 2⁶ = 12244403167 is a prime.

It is a super-2 number, since 2×12244403231² (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 12244403231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12244403239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6122201615 + 6122201616.

It is an arithmetic number, because the mean of its divisors is an integer number (6122201616).

Almost surely, 2^12244403231 is an apocalyptic number.

12244403231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12244403231 is an equidigital number, since it uses as much as digits as its factorization.

12244403231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 12244403231 its reverse (13230444221), we get a palindrome (25474847452).

The spelling of 12244403231 in words is "twelve billion, two hundred forty-four million, four hundred three thousand, two hundred thirty-one".