1313321135587 has 2 divisors, whose sum is σ = 1313321135588. Its totient is φ = 1313321135586.

The previous prime is 1313321135573. The next prime is 1313321135591. The reversal of 1313321135587 is 7855311233131.

It is a strong prime.

It is an emirp because it is prime and its reverse (7855311233131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1313321135587 - 2²⁷ = 1313186917859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313321135537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656660567793 + 656660567794.

It is an arithmetic number, because the mean of its divisors is an integer number (656660567794).

Almost surely, 2^{1313321135587} is an apocalyptic number.

1313321135587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313321135587 is an equidigital number, since it uses as much as digits as its factorization.

1313321135587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 43.

The spelling of 1313321135587 in words is "one trillion, three hundred thirteen billion, three hundred twenty-one million, one hundred thirty-five thousand, five hundred eighty-seven".