321001012331983 has 2 divisors, whose sum is σ = 321001012331984. Its totient is φ = 321001012331982.

The previous prime is 321001012331981. The next prime is 321001012332001. The reversal of 321001012331983 is 389133210100123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321001012331983 - 2¹ = 321001012331981 is a prime.

Together with 321001012331981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321001012331981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160500506165991 + 160500506165992.

It is an arithmetic number, because the mean of its divisors is an integer number (160500506165992).

Almost surely, 2^{321001012331983} is an apocalyptic number.

321001012331983 is a deficient number, since it is larger than the sum of its proper divisors (1).

321001012331983 is an equidigital number, since it uses as much as digits as its factorization.

321001012331983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 321001012331983 in words is "three hundred twenty-one trillion, one billion, twelve million, three hundred thirty-one thousand, nine hundred eighty-three".