13378329317 has 2 divisors, whose sum is σ = 13378329318. Its totient is φ = 13378329316.

The previous prime is 13378329301. The next prime is 13378329331. The reversal of 13378329317 is 71392387331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8662211041 + 4716118276 = 93071^2 + 68674^2 .

It is an emirp because it is prime and its reverse (71392387331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13378329317 - 2⁴ = 13378329301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13378323317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6689164658 + 6689164659.

It is an arithmetic number, because the mean of its divisors is an integer number (6689164659).

Almost surely, 2^13378329317 is an apocalyptic number.

It is an amenable number.

13378329317 is a deficient number, since it is larger than the sum of its proper divisors (1).

13378329317 is an equidigital number, since it uses as much as digits as its factorization.

13378329317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 47.

The spelling of 13378329317 in words is "thirteen billion, three hundred seventy-eight million, three hundred twenty-nine thousand, three hundred seventeen".