13213304449 has 2 divisors, whose sum is σ = 13213304450. Its totient is φ = 13213304448.

The previous prime is 13213304399. The next prime is 13213304453. The reversal of 13213304449 is 94440331231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8107201600 + 5106102849 = 90040^2 + 71457^2 .

It is a cyclic number.

It is not a de Polignac number, because 13213304449 - 2⁹ = 13213303937 is a prime.

It is not a weakly prime, because it can be changed into another prime (13213304749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606652224 + 6606652225.

It is an arithmetic number, because the mean of its divisors is an integer number (6606652225).

Almost surely, 2^13213304449 is an apocalyptic number.

It is an amenable number.

13213304449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213304449 is an equidigital number, since it uses as much as digits as its factorization.

13213304449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 13213304449 in words is "thirteen billion, two hundred thirteen million, three hundred four thousand, four hundred forty-nine".