321960987683 has 2 divisors, whose sum is σ = 321960987684. Its totient is φ = 321960987682.

The previous prime is 321960987671. The next prime is 321960987757. The reversal of 321960987683 is 386789069123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321960987683 - 2⁶ = 321960987619 is a prime.

It is not a weakly prime, because it can be changed into another prime (321960957683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160980493841 + 160980493842.

It is an arithmetic number, because the mean of its divisors is an integer number (160980493842).

Almost surely, 2^321960987683 is an apocalyptic number.

321960987683 is a deficient number, since it is larger than the sum of its proper divisors (1).

321960987683 is an equidigital number, since it uses as much as digits as its factorization.

321960987683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 321960987683 in words is "three hundred twenty-one billion, nine hundred sixty million, nine hundred eighty-seven thousand, six hundred eighty-three".