13244030321 has 2 divisors, whose sum is σ = 13244030322. Its totient is φ = 13244030320.

The previous prime is 13244030279. The next prime is 13244030347. The reversal of 13244030321 is 12303044231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9518148721 + 3725881600 = 97561^2 + 61040^2 .

It is an emirp because it is prime and its reverse (12303044231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13244030321 - 2¹⁰ = 13244029297 is a prime.

It is not a weakly prime, because it can be changed into another prime (13244030021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622015160 + 6622015161.

It is an arithmetic number, because the mean of its divisors is an integer number (6622015161).

Almost surely, 2^13244030321 is an apocalyptic number.

It is an amenable number.

13244030321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13244030321 is an equidigital number, since it uses as much as digits as its factorization.

13244030321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13244030321 its reverse (12303044231), we get a palindrome (25547074552).

The spelling of 13244030321 in words is "thirteen billion, two hundred forty-four million, thirty thousand, three hundred twenty-one".