320452313 has 2 divisors, whose sum is σ = 320452314. Its totient is φ = 320452312.

The previous prime is 320452303. The next prime is 320452343. The reversal of 320452313 is 313254023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317801929 + 2650384 = 17827^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 320452313 - 2¹⁰ = 320451289 is a prime.

It is not a weakly prime, because it can be changed into another prime (320452303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160226156 + 160226157.

It is an arithmetic number, because the mean of its divisors is an integer number (160226157).

Almost surely, 2^320452313 is an apocalyptic number.

It is an amenable number.

320452313 is a deficient number, since it is larger than the sum of its proper divisors (1).

320452313 is an equidigital number, since it uses as much as digits as its factorization.

320452313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 320452313 is about 17901.1818883559. The cubic root of 320452313 is about 684.3124954293.

The spelling of 320452313 in words is "three hundred twenty million, four hundred fifty-two thousand, three hundred thirteen".