13313721704329 has 2 divisors, whose sum is σ = 13313721704330. Its totient is φ = 13313721704328.

The previous prime is 13313721704303. The next prime is 13313721704341. The reversal of 13313721704329 is 92340712731331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11216959783929 + 2096761920400 = 3349173^2 + 1448020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13313721704329 is a prime.

It is not a weakly prime, because it can be changed into another prime (13313721707329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656860852164 + 6656860852165.

It is an arithmetic number, because the mean of its divisors is an integer number (6656860852165).

Almost surely, 2^{13313721704329} is an apocalyptic number.

It is an amenable number.

13313721704329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13313721704329 is an equidigital number, since it uses as much as digits as its factorization.

13313721704329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 46.

The spelling of 13313721704329 in words is "thirteen trillion, three hundred thirteen billion, seven hundred twenty-one million, seven hundred four thousand, three hundred twenty-nine".