13344434401 has 2 divisors, whose sum is σ = 13344434402. Its totient is φ = 13344434400.

The previous prime is 13344434387. The next prime is 13344434429. The reversal of 13344434401 is 10443444331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11235788001 + 2108646400 = 105999^2 + 45920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13344434401 is a prime.

It is not a weakly prime, because it can be changed into another prime (13344434491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6672217200 + 6672217201.

It is an arithmetic number, because the mean of its divisors is an integer number (6672217201).

Almost surely, 2^13344434401 is an apocalyptic number.

It is an amenable number.

13344434401 is a deficient number, since it is larger than the sum of its proper divisors (1).

13344434401 is an equidigital number, since it uses as much as digits as its factorization.

13344434401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 13344434401 its reverse (10443444331), we get a palindrome (23787878732).

The spelling of 13344434401 in words is "thirteen billion, three hundred forty-four million, four hundred thirty-four thousand, four hundred one".