320212313 has 8 divisors (see below), whose sum is σ = 322603008. Its totient is φ = 317827584.

The previous prime is 320212309. The next prime is 320212367. The reversal of 320212313 is 313212023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320212313 - 2² = 320212309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320212291 and 320212300.

It is not an unprimeable number, because it can be changed into a prime (320212213) 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 7 ways as a sum of consecutive naturals, for example, 191720 + ... + 193382.

It is an arithmetic number, because the mean of its divisors is an integer number (40325376).

Almost surely, 2^320212313 is an apocalyptic number.

It is an amenable number.

320212313 is a deficient number, since it is larger than the sum of its proper divisors (2390695).

320212313 is a wasteful number, since it uses less digits than its factorization.

320212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 320212313 is about 17894.4771647567. The cubic root of 320212313 is about 684.1416161127.

Adding to 320212313 its reverse (313212023), we get a palindrome (633424336).

The spelling of 320212313 in words is "three hundred twenty million, two hundred twelve thousand, three hundred thirteen".