320130120 has 64 divisors (see below), whose sum is σ = 972576000. Its totient is φ = 84284928.

The previous prime is 320130089. The next prime is 320130121. The reversal of 320130120 is 21031023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 320130096 and 320130105.

It is not an unprimeable number, because it can be changed into a prime (320130121) 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 15 ways as a sum of consecutive naturals, for example, 7405 + ... + 26364.

It is an arithmetic number, because the mean of its divisors is an integer number (15196500).

Almost surely, 2^320130120 is an apocalyptic number.

320130120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320130120 is an abundant number, since it is smaller than the sum of its proper divisors (652445880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320130120 is a wasteful number, since it uses less digits than its factorization.

320130120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33862 (or 33858 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 320130120 is about 17892.1804149187. The cubic root of 320130120 is about 684.0830753035.

Adding to 320130120 its reverse (21031023), we get a palindrome (341161143).

The spelling of 320130120 in words is "three hundred twenty million, one hundred thirty thousand, one hundred twenty".