320133212 has 12 divisors (see below), whose sum is σ = 640266480. Its totient is φ = 137199936.

The previous prime is 320133173. The next prime is 320133217. The reversal of 320133212 is 212331023.

320133212 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320133217) by changing a digit.

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, 5716637 + ... + 5716692.

It is an arithmetic number, because the mean of its divisors is an integer number (53355540).

Almost surely, 2^320133212 is an apocalyptic number.

It is an amenable number.

320133212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

320133212 is a wasteful number, since it uses less digits than its factorization.

320133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11433340 (or 11433338 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 320133212 is about 17892.2668211717. The cubic root of 320133212 is about 684.0852777184.

Adding to 320133212 its reverse (212331023), we get a palindrome (532464235).

The spelling of 320133212 in words is "three hundred twenty million, one hundred thirty-three thousand, two hundred twelve".