320323130 has 8 divisors (see below), whose sum is σ = 576581652. Its totient is φ = 128129248.

The previous prime is 320323127. The next prime is 320323141. The reversal of 320323130 is 31323023.

It can be written as a sum of positive squares in 2 ways, for example, as 286252561 + 34070569 = 16919^2 + 5837^2 .

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

It is a super-2 number, since 2×320323130² = 205213815225993800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320323099 and 320323108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16016147 + ... + 16016166.

Almost surely, 2^320323130 is an apocalyptic number.

320323130 is a deficient number, since it is larger than the sum of its proper divisors (256258522).

320323130 is a wasteful number, since it uses less digits than its factorization.

320323130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32032320.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 320323130 is about 17897.5732991934. The cubic root of 320323130 is about 684.2205281077.

Adding to 320323130 its reverse (31323023), we get a palindrome (351646153).

The spelling of 320323130 in words is "three hundred twenty million, three hundred twenty-three thousand, one hundred thirty".