13313221322087 has 2 divisors, whose sum is σ = 13313221322088. Its totient is φ = 13313221322086.

The previous prime is 13313221322081. The next prime is 13313221322117. The reversal of 13313221322087 is 78022312231331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13313221322087 - 2¹⁰ = 13313221321063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13313221322087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13313221322081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656610661043 + 6656610661044.

It is an arithmetic number, because the mean of its divisors is an integer number (6656610661044).

Almost surely, 2^{13313221322087} is an apocalyptic number.

13313221322087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13313221322087 is an equidigital number, since it uses as much as digits as its factorization.

13313221322087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 13313221322087 in words is "thirteen trillion, three hundred thirteen billion, two hundred twenty-one million, three hundred twenty-two thousand, eighty-seven".