321013331120987 has 2 divisors, whose sum is σ = 321013331120988. Its totient is φ = 321013331120986.

The previous prime is 321013331120959. The next prime is 321013331121013. The reversal of 321013331120987 is 789021133310123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321013331120987 - 2¹⁰ = 321013331119963 is a prime.

It is not a weakly prime, because it can be changed into another prime (321013331120887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160506665560493 + 160506665560494.

It is an arithmetic number, because the mean of its divisors is an integer number (160506665560494).

Almost surely, 2^{321013331120987} is an apocalyptic number.

321013331120987 is a deficient number, since it is larger than the sum of its proper divisors (1).

321013331120987 is an equidigital number, since it uses as much as digits as its factorization.

321013331120987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 321013331120987 in words is "three hundred twenty-one trillion, thirteen billion, three hundred thirty-one million, one hundred twenty thousand, nine hundred eighty-seven".