321231335323207 has 2 divisors, whose sum is σ = 321231335323208. Its totient is φ = 321231335323206.

The previous prime is 321231335323139. The next prime is 321231335323279. The reversal of 321231335323207 is 702323533132123.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321231335323207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321231335323207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321231335329207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160615667661603 + 160615667661604.

It is an arithmetic number, because the mean of its divisors is an integer number (160615667661604).

Almost surely, 2^{321231335323207} is an apocalyptic number.

321231335323207 is a deficient number, since it is larger than the sum of its proper divisors (1).

321231335323207 is an equidigital number, since it uses as much as digits as its factorization.

321231335323207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 40.

The spelling of 321231335323207 in words is "three hundred twenty-one trillion, two hundred thirty-one billion, three hundred thirty-five million, three hundred twenty-three thousand, two hundred seven".