321323232165647 has 2 divisors, whose sum is σ = 321323232165648. Its totient is φ = 321323232165646.

The previous prime is 321323232165589. The next prime is 321323232165653. The reversal of 321323232165647 is 746561232323123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321323232165647 - 2¹⁴ = 321323232149263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321323232165595 and 321323232165604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321323232164647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160661616082823 + 160661616082824.

It is an arithmetic number, because the mean of its divisors is an integer number (160661616082824).

Almost surely, 2^{321323232165647} is an apocalyptic number.

321323232165647 is a deficient number, since it is larger than the sum of its proper divisors (1).

321323232165647 is an equidigital number, since it uses as much as digits as its factorization.

321323232165647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 50.

The spelling of 321323232165647 in words is "three hundred twenty-one trillion, three hundred twenty-three billion, two hundred thirty-two million, one hundred sixty-five thousand, six hundred forty-seven".