320213232012 has 48 divisors (see below), whose sum is σ = 767543787360. Its totient is φ = 103827773952.

The previous prime is 320213232011. The next prime is 320213232037. The reversal of 320213232012 is 210232312023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320213232012.

It is not an unprimeable number, because it can be changed into a prime (320213232011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1792408 + ... + 1962944.

It is an arithmetic number, because the mean of its divisors is an integer number (15990495570).

Almost surely, 2^320213232012 is an apocalyptic number.

It is an amenable number.

320213232012 is an abundant number, since it is smaller than the sum of its proper divisors (447330555348).

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

320213232012 is a wasteful number, since it uses less digits than its factorization.

320213232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174810 (or 174808 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 320213232012 its reverse (210232312023), we get a palindrome (530445544035).

The spelling of 320213232012 in words is "three hundred twenty billion, two hundred thirteen million, two hundred thirty-two thousand, twelve".