321343339 has 2 divisors, whose sum is σ = 321343340. Its totient is φ = 321343338.

The previous prime is 321343301. The next prime is 321343391. The reversal of 321343339 is 933343123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321343339 - 2¹¹ = 321341291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321343339.

It is not a weakly prime, because it can be changed into another prime (321343439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160671669 + 160671670.

It is an arithmetic number, because the mean of its divisors is an integer number (160671670).

Almost surely, 2^321343339 is an apocalyptic number.

321343339 is a deficient number, since it is larger than the sum of its proper divisors (1).

321343339 is an equidigital number, since it uses as much as digits as its factorization.

321343339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 31.

The square root of 321343339 is about 17926.0519635529. The cubic root of 321343339 is about 684.9461580569.

The spelling of 321343339 in words is "three hundred twenty-one million, three hundred forty-three thousand, three hundred thirty-nine".