320130332 has 12 divisors (see below), whose sum is σ = 593182800. Its totient is φ = 150649536.

The previous prime is 320130287. The next prime is 320130341. The reversal of 320130332 is 233031023.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 320130332.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2353832 + ... + 2353967.

It is an arithmetic number, because the mean of its divisors is an integer number (49431900).

Almost surely, 2^320130332 is an apocalyptic number.

It is an amenable number.

320130332 is a deficient number, since it is larger than the sum of its proper divisors (273052468).

320130332 is a wasteful number, since it uses less digits than its factorization.

320130332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707820 (or 4707818 counting only the distinct ones).

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

The square root of 320130332 is about 17892.1863392935. The cubic root of 320130332 is about 684.0832263104.

Adding to 320130332 its reverse (233031023), we get a palindrome (553161355).

It can be divided in two parts, 3201 and 30332, that added together give a palindrome (33533).

The spelling of 320130332 in words is "three hundred twenty million, one hundred thirty thousand, three hundred thirty-two".