320343113 has 4 divisors (see below), whose sum is σ = 321266640. Its totient is φ = 319419588.

The previous prime is 320343109. The next prime is 320343131. The reversal of 320343113 is 311343023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320343113 - 2² = 320343109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320343143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461243 + ... + 461936.

It is an arithmetic number, because the mean of its divisors is an integer number (80316660).

Almost surely, 2^320343113 is an apocalyptic number.

It is an amenable number.

320343113 is a deficient number, since it is larger than the sum of its proper divisors (923527).

320343113 is an equidigital number, since it uses as much as digits as its factorization.

320343113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923526.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 320343113 is about 17898.1315505278. The cubic root of 320343113 is about 684.2347559225.

Adding to 320343113 its reverse (311343023), we get a palindrome (631686136).

The spelling of 320343113 in words is "three hundred twenty million, three hundred forty-three thousand, one hundred thirteen".