13104320360121 has 15 divisors (see below), whose sum is σ = 19575638342623. Its totient is φ = 8736191853480.

The previous prime is 13104320360069. The next prime is 13104320360161. The reversal of 13104320360121 is 12106302340131.

It is a happy number.

The square root of 13104320360121 is 3619989.

It is a perfect power (a square), and thus also a powerful number.

13104320360121 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 4 + 32 + 0 + 3 + 601 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9608691844521 + 3495628515600 = 3099789^2 + 1869660^2 .

It is not a de Polignac number, because 13104320360121 - 2⁹ = 13104320359609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13104320360161) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 32378791 + ... + 32781011.

Almost surely, 2^{13104320360121} is an apocalyptic number.

13104320360121 is the 3619989-th square number.

13104320360121 is the 1809995-th centered octagonal number.

It is an amenable number.

13104320360121 is a deficient number, since it is larger than the sum of its proper divisors (6471317982502).

13104320360121 is an frugal number, since it uses more digits than its factorization.

13104320360121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804454 (or 402224 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 13104320360121 in words is "thirteen trillion, one hundred four billion, three hundred twenty million, three hundred sixty thousand, one hundred twenty-one".