13104203303921 has 2 divisors, whose sum is σ = 13104203303922. Its totient is φ = 13104203303920.

The previous prime is 13104203303843. The next prime is 13104203303977. The reversal of 13104203303921 is 12930330240131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8807243290000 + 4296960013921 = 2967700^2 + 2072911^2 .

It is a cyclic number.

It is not a de Polignac number, because 13104203303921 - 2¹⁴ = 13104203287537 is a prime.

It is not a weakly prime, because it can be changed into another prime (13104203300921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552101651960 + 6552101651961.

It is an arithmetic number, because the mean of its divisors is an integer number (6552101651961).

Almost surely, 2^{13104203303921} is an apocalyptic number.

It is an amenable number.

13104203303921 is a deficient number, since it is larger than the sum of its proper divisors (1).

13104203303921 is an equidigital number, since it uses as much as digits as its factorization.

13104203303921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 13104203303921 in words is "thirteen trillion, one hundred four billion, two hundred three million, three hundred three thousand, nine hundred twenty-one".