321313327 has 2 divisors, whose sum is σ = 321313328. Its totient is φ = 321313326.

The previous prime is 321313297. The next prime is 321313331. The reversal of 321313327 is 723313123.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321313327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321313337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160656663 + 160656664.

It is an arithmetic number, because the mean of its divisors is an integer number (160656664).

Almost surely, 2^321313327 is an apocalyptic number.

321313327 is a deficient number, since it is larger than the sum of its proper divisors (1).

321313327 is an equidigital number, since it uses as much as digits as its factorization.

321313327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 25.

The square root of 321313327 is about 17925.2148383220. The cubic root of 321313327 is about 684.9248337789.

The spelling of 321313327 in words is "three hundred twenty-one million, three hundred thirteen thousand, three hundred twenty-seven".