13243433434349 has 2 divisors, whose sum is σ = 13243433434350. Its totient is φ = 13243433434348.

The previous prime is 13243433434211. The next prime is 13243433434369. The reversal of 13243433434349 is 94343433434231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12907363953124 + 336069481225 = 3592682^2 + 579715^2 .

It is an emirp because it is prime and its reverse (94343433434231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13243433434349 - 2³² = 13239138467053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13243433434297 and 13243433434306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13243433434369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621716717174 + 6621716717175.

It is an arithmetic number, because the mean of its divisors is an integer number (6621716717175).

Almost surely, 2^{13243433434349} is an apocalyptic number.

It is an amenable number.

13243433434349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13243433434349 is an equidigital number, since it uses as much as digits as its factorization.

13243433434349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 50.

The spelling of 13243433434349 in words is "thirteen trillion, two hundred forty-three billion, four hundred thirty-three million, four hundred thirty-four thousand, three hundred forty-nine".