12321412399 has 2 divisors, whose sum is σ = 12321412400. Its totient is φ = 12321412398.

The previous prime is 12321412357. The next prime is 12321412421. The reversal of 12321412399 is 99321412321.

It is a strong prime.

It is an emirp because it is prime and its reverse (99321412321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12321412399 - 2¹⁷ = 12321281327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321412199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160706199 + 6160706200.

It is an arithmetic number, because the mean of its divisors is an integer number (6160706200).

Almost surely, 2^12321412399 is an apocalyptic number.

12321412399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321412399 is an equidigital number, since it uses as much as digits as its factorization.

12321412399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The spelling of 12321412399 in words is "twelve billion, three hundred twenty-one million, four hundred twelve thousand, three hundred ninety-nine".