320314312 has 32 divisors (see below), whose sum is σ = 634125600. Its totient is φ = 151265664.

The previous prime is 320314279. The next prime is 320314343. The reversal of 320314312 is 213413023.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 320314312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49708 + ... + 55780.

It is an arithmetic number, because the mean of its divisors is an integer number (19816425).

Almost surely, 2^320314312 is an apocalyptic number.

It is an amenable number.

320314312 is a deficient number, since it is larger than the sum of its proper divisors (313811288).

320314312 is a wasteful number, since it uses less digits than its factorization.

320314312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445 (or 6441 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 320314312 is about 17897.3269512517. The cubic root of 320314312 is about 684.2142495394.

Adding to 320314312 its reverse (213413023), we get a palindrome (533727335).

The spelling of 320314312 in words is "three hundred twenty million, three hundred fourteen thousand, three hundred twelve".