321213141143317 has 2 divisors, whose sum is σ = 321213141143318. Its totient is φ = 321213141143316.

The previous prime is 321213141143311. The next prime is 321213141143417. The reversal of 321213141143317 is 713341141312123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307979545027716 + 13233596115601 = 17549346^2 + 3637801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321213141143317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321213141143311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160606570571658 + 160606570571659.

It is an arithmetic number, because the mean of its divisors is an integer number (160606570571659).

Almost surely, 2^{321213141143317} is an apocalyptic number.

It is an amenable number.

321213141143317 is a deficient number, since it is larger than the sum of its proper divisors (1).

321213141143317 is an equidigital number, since it uses as much as digits as its factorization.

321213141143317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The spelling of 321213141143317 in words is "three hundred twenty-one trillion, two hundred thirteen billion, one hundred forty-one million, one hundred forty-three thousand, three hundred seventeen".