320112012 has 48 divisors (see below), whose sum is σ = 836865792. Its totient is φ = 94380480.

The previous prime is 320111977. The next prime is 320112017. The reversal of 320112012 is 210211023.

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

It is not an unprimeable number, because it can be changed into a prime (320112017) 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, 27888 + ... + 37655.

It is an arithmetic number, because the mean of its divisors is an integer number (17434704).

Almost surely, 2^320112012 is an apocalyptic number.

It is an amenable number.

320112012 is an abundant number, since it is smaller than the sum of its proper divisors (516753780).

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

320112012 is a wasteful number, since it uses less digits than its factorization.

320112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65598 (or 65596 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 320112012 is about 17891.6743766479. The cubic root of 320112012 is about 684.0701767880.

Adding to 320112012 its reverse (210211023), we get a palindrome (530323035).

The spelling of 320112012 in words is "three hundred twenty million, one hundred twelve thousand, twelve".