13321313 has 2 divisors, whose sum is σ = 13321314. Its totient is φ = 13321312.

The previous prime is 13321307. The next prime is 13321327. The reversal of 13321313 is 31312331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9909904 + 3411409 = 3148^2 + 1847^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321313 - 2¹² = 13317217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13321291 and 13321300.

It is not a weakly prime, because it can be changed into another prime (13321303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660656 + 6660657.

It is an arithmetic number, because the mean of its divisors is an integer number (6660657).

Almost surely, 2^13321313 is an apocalyptic number.

It is an amenable number.

13321313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321313 is an equidigital number, since it uses as much as digits as its factorization.

13321313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 17.

The square root of 13321313 is about 3649.8373936382. The cubic root of 13321313 is about 237.0549404696.

Adding to 13321313 its reverse (31312331), we get a palindrome (44633644).

The spelling of 13321313 in words is "thirteen million, three hundred twenty-one thousand, three hundred thirteen".