13104531205487 has 2 divisors, whose sum is σ = 13104531205488. Its totient is φ = 13104531205486.

The previous prime is 13104531205459. The next prime is 13104531205561. The reversal of 13104531205487 is 78450213540131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13104531205487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13104534205487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552265602743 + 6552265602744.

It is an arithmetic number, because the mean of its divisors is an integer number (6552265602744).

Almost surely, 2^{13104531205487} is an apocalyptic number.

13104531205487 is a deficient number, since it is larger than the sum of its proper divisors (1).

13104531205487 is an equidigital number, since it uses as much as digits as its factorization.

13104531205487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 13104531205487 in words is "thirteen trillion, one hundred four billion, five hundred thirty-one million, two hundred five thousand, four hundred eighty-seven".