13311443443373 has 2 divisors, whose sum is σ = 13311443443374. Its totient is φ = 13311443443372.

The previous prime is 13311443443349. The next prime is 13311443443427. The reversal of 13311443443373 is 37334434411331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12511486716964 + 799956726409 = 3537158^2 + 894403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13311443443373 is a prime.

It is a super-2 number, since 2×13311443443373² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13311443443673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6655721721686 + 6655721721687.

It is an arithmetic number, because the mean of its divisors is an integer number (6655721721687).

Almost surely, 2^{13311443443373} is an apocalyptic number.

It is an amenable number.

13311443443373 is a deficient number, since it is larger than the sum of its proper divisors (1).

13311443443373 is an equidigital number, since it uses as much as digits as its factorization.

13311443443373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 44.

The spelling of 13311443443373 in words is "thirteen trillion, three hundred eleven billion, four hundred forty-three million, four hundred forty-three thousand, three hundred seventy-three".