12326374148521 has 2 divisors, whose sum is σ = 12326374148522. Its totient is φ = 12326374148520.

The previous prime is 12326374148329. The next prime is 12326374148563. The reversal of 12326374148521 is 12584147362321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9195813651600 + 3130560496921 = 3032460^2 + 1769339^2 .

It is an emirp because it is prime and its reverse (12584147362321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12326374148521 - 2²⁷ = 12326239930793 is a prime.

It is not a weakly prime, because it can be changed into another prime (12326374148021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6163187074260 + 6163187074261.

It is an arithmetic number, because the mean of its divisors is an integer number (6163187074261).

Almost surely, 2^{12326374148521} is an apocalyptic number.

It is an amenable number.

12326374148521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12326374148521 is an equidigital number, since it uses as much as digits as its factorization.

12326374148521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 49.

The spelling of 12326374148521 in words is "twelve trillion, three hundred twenty-six billion, three hundred seventy-four million, one hundred forty-eight thousand, five hundred twenty-one".