13011209752129 has 4 divisors (see below), whose sum is σ = 13776575031684. Its totient is φ = 12245844472576.

The previous prime is 13011209752069. The next prime is 13011209752153. The reversal of 13011209752129 is 92125790211031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11635637321025 + 1375572431104 = 3411105^2 + 1172848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13011209752129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13011209752829) 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 in 3 ways as a sum of consecutive naturals, for example, 382682639752 + ... + 382682639785.

It is an arithmetic number, because the mean of its divisors is an integer number (3444143757921).

Almost surely, 2^{13011209752129} is an apocalyptic number.

It is an amenable number.

13011209752129 is a deficient number, since it is larger than the sum of its proper divisors (765365279555).

13011209752129 is an equidigital number, since it uses as much as digits as its factorization.

13011209752129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765365279554.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 13011209752129 in words is "thirteen trillion, eleven billion, two hundred nine million, seven hundred fifty-two thousand, one hundred twenty-nine".