13256641043 has 2 divisors, whose sum is σ = 13256641044. Its totient is φ = 13256641042.

The previous prime is 13256641033. The next prime is 13256641051. The reversal of 13256641043 is 34014665231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13256641043 - 2¹² = 13256636947 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 13256640994 and 13256641012.

It is not a weakly prime, because it can be changed into another prime (13256641003) 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, 6628320521 + 6628320522.

It is an arithmetic number, because the mean of its divisors is an integer number (6628320522).

Almost surely, 2^13256641043 is an apocalyptic number.

13256641043 is a deficient number, since it is larger than the sum of its proper divisors (1).

13256641043 is an equidigital number, since it uses as much as digits as its factorization.

13256641043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 13256641043 in words is "thirteen billion, two hundred fifty-six million, six hundred forty-one thousand, forty-three".