13121021046587 has 2 divisors, whose sum is σ = 13121021046588. Its totient is φ = 13121021046586.

The previous prime is 13121021046527. The next prime is 13121021046607. The reversal of 13121021046587 is 78564012012131.

It is a strong prime.

It is an emirp because it is prime and its reverse (78564012012131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13121021046587 - 2¹⁰ = 13121021045563 is a prime.

It is a super-2 number, since 2×13121021046587² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13121021046527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560510523293 + 6560510523294.

It is an arithmetic number, because the mean of its divisors is an integer number (6560510523294).

Almost surely, 2^{13121021046587} is an apocalyptic number.

13121021046587 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121021046587 is an equidigital number, since it uses as much as digits as its factorization.

13121021046587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 13121021046587 in words is "thirteen trillion, one hundred twenty-one billion, twenty-one million, forty-six thousand, five hundred eighty-seven".