12944944013 has 2 divisors, whose sum is σ = 12944944014. Its totient is φ = 12944944012.

The previous prime is 12944943989. The next prime is 12944944037. The reversal of 12944944013 is 31044944921.

It is a balanced prime because it is at equal distance from previous prime (12944943989) and next prime (12944944037).

It can be written as a sum of positive squares in only one way, i.e., 11625583684 + 1319360329 = 107822^2 + 36323^2 .

It is a cyclic number.

It is not a de Polignac number, because 12944944013 - 2²⁸ = 12676508557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12944944043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6472472006 + 6472472007.

It is an arithmetic number, because the mean of its divisors is an integer number (6472472007).

Almost surely, 2^12944944013 is an apocalyptic number.

It is an amenable number.

12944944013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12944944013 is an equidigital number, since it uses as much as digits as its factorization.

12944944013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 12944944013 in words is "twelve billion, nine hundred forty-four million, nine hundred forty-four thousand, thirteen".