321114389 has 2 divisors, whose sum is σ = 321114390. Its totient is φ = 321114388.

The previous prime is 321114331. The next prime is 321114397. The reversal of 321114389 is 983411123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274465489 + 46648900 = 16567^2 + 6830^2 .

It is a cyclic number.

It is not a de Polignac number, because 321114389 - 2¹⁶ = 321048853 is a prime.

It is a super-2 number, since 2×321114389² = 206228901645686642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321114319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160557194 + 160557195.

It is an arithmetic number, because the mean of its divisors is an integer number (160557195).

Almost surely, 2^321114389 is an apocalyptic number.

It is an amenable number.

321114389 is a deficient number, since it is larger than the sum of its proper divisors (1).

321114389 is an equidigital number, since it uses as much as digits as its factorization.

321114389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 321114389 is about 17919.6648685180. The cubic root of 321114389 is about 684.7834497615.

The spelling of 321114389 in words is "three hundred twenty-one million, one hundred fourteen thousand, three hundred eighty-nine".