13121313130109 has 4 divisors (see below), whose sum is σ = 13137492308640. Its totient is φ = 13105133951580.

The previous prime is 13121313130033. The next prime is 13121313130111. The reversal of 13121313130109 is 90103131312131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13121313130109 - 2²⁴ = 13121296352893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121313130169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8089588049 + ... + 8089589670.

It is an arithmetic number, because the mean of its divisors is an integer number (3284373077160).

Almost surely, 2^{13121313130109} is an apocalyptic number.

It is an amenable number.

13121313130109 is a deficient number, since it is larger than the sum of its proper divisors (16179178531).

13121313130109 is an equidigital number, since it uses as much as digits as its factorization.

13121313130109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16179178530.

The product of its (nonzero) digits is 1458, while the sum is 29.

The spelling of 13121313130109 in words is "thirteen trillion, one hundred twenty-one billion, three hundred thirteen million, one hundred thirty thousand, one hundred nine".