320366313 has 16 divisors (see below), whose sum is σ = 487445760. Its totient is φ = 207804528.

The previous prime is 320366303. The next prime is 320366323. The reversal of 320366313 is 313663023.

320366313 is a `hidden beast` number, since 3 + 20 + 3 + 6 + 631 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (320366303) and next prime (320366323).

It is not a de Polignac number, because 320366313 - 2¹⁶ = 320300777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (320366303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159345 + ... + 161342.

It is an arithmetic number, because the mean of its divisors is an integer number (30465360).

Almost surely, 2^320366313 is an apocalyptic number.

It is an amenable number.

320366313 is a deficient number, since it is larger than the sum of its proper divisors (167079447).

320366313 is a wasteful number, since it uses less digits than its factorization.

320366313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320733 (or 320727 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 320366313 is about 17898.7796511382. The cubic root of 320366313 is about 684.2512734860.

The spelling of 320366313 in words is "three hundred twenty million, three hundred sixty-six thousand, three hundred thirteen".