13340423121449 has 2 divisors, whose sum is σ = 13340423121450. Its totient is φ = 13340423121448.

The previous prime is 13340423121391. The next prime is 13340423121457. The reversal of 13340423121449 is 94412132404331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6885612162025 + 6454810959424 = 2624045^2 + 2540632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13340423121449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13340423121349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6670211560724 + 6670211560725.

It is an arithmetic number, because the mean of its divisors is an integer number (6670211560725).

Almost surely, 2^{13340423121449} is an apocalyptic number.

It is an amenable number.

13340423121449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13340423121449 is an equidigital number, since it uses as much as digits as its factorization.

13340423121449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 13340423121449 in words is "thirteen trillion, three hundred forty billion, four hundred twenty-three million, one hundred twenty-one thousand, four hundred forty-nine".