13346321 has 2 divisors, whose sum is σ = 13346322. Its totient is φ = 13346320.

The previous prime is 13346299. The next prime is 13346323. The reversal of 13346321 is 12364331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13249600 + 96721 = 3640^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 13346321 - 2⁶ = 13346257 is a prime.

Together with 13346323, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (13346323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6673160 + 6673161.

It is an arithmetic number, because the mean of its divisors is an integer number (6673161).

Almost surely, 2^13346321 is an apocalyptic number.

It is an amenable number.

13346321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13346321 is an equidigital number, since it uses as much as digits as its factorization.

13346321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 23.

The square root of 13346321 is about 3653.2616933365. The cubic root of 13346321 is about 237.2031882216.

The spelling of 13346321 in words is "thirteen million, three hundred forty-six thousand, three hundred twenty-one".