13104403314521 has 4 divisors (see below), whose sum is σ = 13105182844944. Its totient is φ = 13103623784100.

The previous prime is 13104403314491. The next prime is 13104403314529. The reversal of 13104403314521 is 12541330440131.

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 13104403314521 - 2¹⁰ = 13104403313497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13104403314529) 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, 389739995 + ... + 389773616.

It is an arithmetic number, because the mean of its divisors is an integer number (3276295711236).

Almost surely, 2^{13104403314521} is an apocalyptic number.

It is an amenable number.

13104403314521 is a deficient number, since it is larger than the sum of its proper divisors (779530423).

13104403314521 is an equidigital number, since it uses as much as digits as its factorization.

13104403314521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779530422.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 13104403314521 its reverse (12541330440131), we get a palindrome (25645733754652).

The spelling of 13104403314521 in words is "thirteen trillion, one hundred four billion, four hundred three million, three hundred fourteen thousand, five hundred twenty-one".