321983117 has 2 divisors, whose sum is σ = 321983118. Its totient is φ = 321983116.

The previous prime is 321983107. The next prime is 321983131. The reversal of 321983117 is 711389123.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305935081 + 16048036 = 17491^2 + 4006^2 .

It is a cyclic number.

It is not a de Polignac number, because 321983117 - 2¹⁶ = 321917581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321983107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160991558 + 160991559.

It is an arithmetic number, because the mean of its divisors is an integer number (160991559).

Almost surely, 2^321983117 is an apocalyptic number.

It is an amenable number.

321983117 is a deficient number, since it is larger than the sum of its proper divisors (1).

321983117 is an equidigital number, since it uses as much as digits as its factorization.

321983117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 321983117 is about 17943.8880123567. Note that the first 3 decimals coincide. The cubic root of 321983117 is about 685.4004208667.

The spelling of 321983117 in words is "three hundred twenty-one million, nine hundred eighty-three thousand, one hundred seventeen".