12399313 has 2 divisors, whose sum is σ = 12399314. Its totient is φ = 12399312.

The previous prime is 12399311. The next prime is 12399347. The reversal of 12399313 is 31399321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7524049 + 4875264 = 2743^2 + 2208^2 .

It is a cyclic number.

It is not a de Polignac number, because 12399313 - 2¹ = 12399311 is a prime.

Together with 12399311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12399311) 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, 6199656 + 6199657.

It is an arithmetic number, because the mean of its divisors is an integer number (6199657).

Almost surely, 2^12399313 is an apocalyptic number.

It is an amenable number.

12399313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12399313 is an equidigital number, since it uses as much as digits as its factorization.

12399313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 31.

The square root of 12399313 is about 3521.2658235356. The cubic root of 12399313 is about 231.4546308503.

The spelling of 12399313 in words is "twelve million, three hundred ninety-nine thousand, three hundred thirteen".