13104331313261 has 2 divisors, whose sum is σ = 13104331313262. Its totient is φ = 13104331313260.

The previous prime is 13104331313251. The next prime is 13104331313299. The reversal of 13104331313261 is 16231313340131.

13104331313261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11834934757636 + 1269396555625 = 3440194^2 + 1126675^2 .

It is a cyclic number.

It is not a de Polignac number, because 13104331313261 - 2¹⁸ = 13104331051117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13104331313221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552165656630 + 6552165656631.

It is an arithmetic number, because the mean of its divisors is an integer number (6552165656631).

Almost surely, 2^{13104331313261} is an apocalyptic number.

It is an amenable number.

13104331313261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13104331313261 is an equidigital number, since it uses as much as digits as its factorization.

13104331313261 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.

Adding to 13104331313261 its reverse (16231313340131), we get a palindrome (29335644653392).

The spelling of 13104331313261 in words is "thirteen trillion, one hundred four billion, three hundred thirty-one million, three hundred thirteen thousand, two hundred sixty-one".