12323131427 has 2 divisors, whose sum is σ = 12323131428. Its totient is φ = 12323131426.

The previous prime is 12323131363. The next prime is 12323131441. The reversal of 12323131427 is 72413132321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12323131427 - 2⁶ = 12323131363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12323131427.

It is not a weakly prime, because it can be changed into another prime (12323131727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161565713 + 6161565714.

It is an arithmetic number, because the mean of its divisors is an integer number (6161565714).

Almost surely, 2^12323131427 is an apocalyptic number.

12323131427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323131427 is an equidigital number, since it uses as much as digits as its factorization.

12323131427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

Adding to 12323131427 its reverse (72413132321), we get a palindrome (84736263748).

The spelling of 12323131427 in words is "twelve billion, three hundred twenty-three million, one hundred thirty-one thousand, four hundred twenty-seven".