320311313 has 8 divisors (see below), whose sum is σ = 377879040. Its totient is φ = 265695840.

The previous prime is 320311309. The next prime is 320311319. The reversal of 320311313 is 313113023.

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 320311313 - 2² = 320311309 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 320311291 and 320311300.

It is not an unprimeable number, because it can be changed into a prime (320311319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737828 + ... + 738261.

It is an arithmetic number, because the mean of its divisors is an integer number (47234880).

Almost surely, 2^320311313 is an apocalyptic number.

It is an amenable number.

320311313 is a deficient number, since it is larger than the sum of its proper divisors (57567727).

320311313 is a wasteful number, since it uses less digits than its factorization.

320311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476127.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 320311313 is about 17897.2431675943. The cubic root of 320311313 is about 684.2121141733.

Adding to 320311313 its reverse (313113023), we get a palindrome (633424336).

The spelling of 320311313 in words is "three hundred twenty million, three hundred eleven thousand, three hundred thirteen".