12323135449 has 2 divisors, whose sum is σ = 12323135450. Its totient is φ = 12323135448.

The previous prime is 12323135399. The next prime is 12323135467. The reversal of 12323135449 is 94453132321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12227936400 + 95199049 = 110580^2 + 9757^2 .

It is a cyclic number.

It is not a de Polignac number, because 12323135449 - 2³³ = 3733200857 is a prime.

It is not a weakly prime, because it can be changed into another prime (12323135479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161567724 + 6161567725.

It is an arithmetic number, because the mean of its divisors is an integer number (6161567725).

Almost surely, 2^12323135449 is an apocalyptic number.

It is an amenable number.

12323135449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323135449 is an equidigital number, since it uses as much as digits as its factorization.

12323135449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The spelling of 12323135449 in words is "twelve billion, three hundred twenty-three million, one hundred thirty-five thousand, four hundred forty-nine".