321135305325587 has 2 divisors, whose sum is σ = 321135305325588. Its totient is φ = 321135305325586.

The previous prime is 321135305325511. The next prime is 321135305325623. The reversal of 321135305325587 is 785523503531123.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321135305325587 is a prime.

It is not a weakly prime, because it can be changed into another prime (321135305325287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160567652662793 + 160567652662794.

It is an arithmetic number, because the mean of its divisors is an integer number (160567652662794).

Almost surely, 2^{321135305325587} is an apocalyptic number.

321135305325587 is a deficient number, since it is larger than the sum of its proper divisors (1).

321135305325587 is an equidigital number, since it uses as much as digits as its factorization.

321135305325587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340000, while the sum is 53.

The spelling of 321135305325587 in words is "three hundred twenty-one trillion, one hundred thirty-five billion, three hundred five million, three hundred twenty-five thousand, five hundred eighty-seven".