321383 has 2 divisors, whose sum is σ = 321384. Its totient is φ = 321382.

The previous prime is 321371. The next prime is 321397. The reversal of 321383 is 383123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321383 - 2⁴ = 321367 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321383.

It is not a weakly prime, because it can be changed into another prime (321313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160691 + 160692.

It is an arithmetic number, because the mean of its divisors is an integer number (160692).

2³²¹³⁸³ is an apocalyptic number.

321383 is a deficient number, since it is larger than the sum of its proper divisors (1).

321383 is an equidigital number, since it uses as much as digits as its factorization.

321383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 321383 is about 566.9065178669. The cubic root of 321383 is about 68.4974336155.

The spelling of 321383 in words is "three hundred twenty-one thousand, three hundred eighty-three".