321121424017 has 2 divisors, whose sum is σ = 321121424018. Its totient is φ = 321121424016.

The previous prime is 321121424011. The next prime is 321121424083. The reversal of 321121424017 is 710424121123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272934149761 + 48187274256 = 522431^2 + 219516^2 .

It is a cyclic number.

It is not a de Polignac number, because 321121424017 - 2³ = 321121424009 is a prime.

It is not a weakly prime, because it can be changed into another prime (321121424011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160560712008 + 160560712009.

It is an arithmetic number, because the mean of its divisors is an integer number (160560712009).

Almost surely, 2^321121424017 is an apocalyptic number.

It is an amenable number.

321121424017 is a deficient number, since it is larger than the sum of its proper divisors (1).

321121424017 is an equidigital number, since it uses as much as digits as its factorization.

321121424017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 321121424017 in words is "three hundred twenty-one billion, one hundred twenty-one million, four hundred twenty-four thousand, seventeen".