13256224406129 has 2 divisors, whose sum is σ = 13256224406130. Its totient is φ = 13256224406128.

The previous prime is 13256224406111. The next prime is 13256224406141. The reversal of 13256224406129 is 92160442265231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10261438409104 + 2994785997025 = 3203348^2 + 1730545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13256224406129 is a prime.

It is not a weakly prime, because it can be changed into another prime (13256224405129) 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, 6628112203064 + 6628112203065.

It is an arithmetic number, because the mean of its divisors is an integer number (6628112203065).

Almost surely, 2^{13256224406129} is an apocalyptic number.

It is an amenable number.

13256224406129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13256224406129 is an equidigital number, since it uses as much as digits as its factorization.

13256224406129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 13256224406129 in words is "thirteen trillion, two hundred fifty-six billion, two hundred twenty-four million, four hundred six thousand, one hundred twenty-nine".