320222313 has 12 divisors (see below), whose sum is σ = 468399360. Its totient is φ = 210778776.

The previous prime is 320222297. The next prime is 320222339. The reversal of 320222313 is 313222023.

It is a happy number.

It is not a de Polignac number, because 320222313 - 2⁴ = 320222297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320222363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224481 + ... + 225902.

It is an arithmetic number, because the mean of its divisors is an integer number (39033280).

Almost surely, 2^320222313 is an apocalyptic number.

It is an amenable number.

320222313 is a deficient number, since it is larger than the sum of its proper divisors (148177047).

320222313 is a wasteful number, since it uses less digits than its factorization.

320222313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450468 (or 450465 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 320222313 is about 17894.7565783947. The cubic root of 320222313 is about 684.1487377886.

Adding to 320222313 its reverse (313222023), we get a palindrome (633444336).

The spelling of 320222313 in words is "three hundred twenty million, two hundred twenty-two thousand, three hundred thirteen".