13124378788901 has 2 divisors, whose sum is σ = 13124378788902. Its totient is φ = 13124378788900.

The previous prime is 13124378788891. The next prime is 13124378788907. The reversal of 13124378788901 is 10988787342131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12940315480225 + 184063308676 = 3597265^2 + 429026^2 .

It is a cyclic number.

It is not a de Polignac number, because 13124378788901 - 2²⁶ = 13124311680037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13124378788907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6562189394450 + 6562189394451.

It is an arithmetic number, because the mean of its divisors is an integer number (6562189394451).

Almost surely, 2^{13124378788901} is an apocalyptic number.

It is an amenable number.

13124378788901 is a deficient number, since it is larger than the sum of its proper divisors (1).

13124378788901 is an equidigital number, since it uses as much as digits as its factorization.

13124378788901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 62.

The spelling of 13124378788901 in words is "thirteen trillion, one hundred twenty-four billion, three hundred seventy-eight million, seven hundred eighty-eight thousand, nine hundred one".