13333318813 has 2 divisors, whose sum is σ = 13333318814. Its totient is φ = 13333318812.

The previous prime is 13333318771. The next prime is 13333318847. The reversal of 13333318813 is 31881333331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10874944089 + 2458374724 = 104283^2 + 49582^2 .

It is a cyclic number.

It is not a de Polignac number, because 13333318813 - 2⁹ = 13333318301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13333313813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6666659406 + 6666659407.

It is an arithmetic number, because the mean of its divisors is an integer number (6666659407).

Almost surely, 2^13333318813 is an apocalyptic number.

It is an amenable number.

13333318813 is a deficient number, since it is larger than the sum of its proper divisors (1).

13333318813 is an equidigital number, since it uses as much as digits as its factorization.

13333318813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The spelling of 13333318813 in words is "thirteen billion, three hundred thirty-three million, three hundred eighteen thousand, eight hundred thirteen".