321322513042247 has 2 divisors, whose sum is σ = 321322513042248. Its totient is φ = 321322513042246.

The previous prime is 321322513042189. The next prime is 321322513042249. The reversal of 321322513042247 is 742240315223123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321322513042247 - 2²⁸ = 321322244606791 is a prime.

Together with 321322513042249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321322513042249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160661256521123 + 160661256521124.

It is an arithmetic number, because the mean of its divisors is an integer number (160661256521124).

Almost surely, 2^{321322513042247} is an apocalyptic number.

321322513042247 is a deficient number, since it is larger than the sum of its proper divisors (1).

321322513042247 is an equidigital number, since it uses as much as digits as its factorization.

321322513042247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 321322513042247 in words is "three hundred twenty-one trillion, three hundred twenty-two billion, five hundred thirteen million, forty-two thousand, two hundred forty-seven".