320133312012 has 24 divisors (see below), whose sum is σ = 767166316336. Its totient is φ = 103827019968.

The previous prime is 320133311989. The next prime is 320133312013. The reversal of 320133312012 is 210213331023.

It is a self number, because there is not a number n which added to its sum of digits gives 320133312012.

It is not an unprimeable number, because it can be changed into a prime (320133312013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360510043 + ... + 360510930.

Almost surely, 2^320133312012 is an apocalyptic number.

It is an amenable number.

320133312012 is an abundant number, since it is smaller than the sum of its proper divisors (447033004324).

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

320133312012 is a wasteful number, since it uses less digits than its factorization.

320133312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721021017 (or 721021015 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 320133312012 its reverse (210213331023), we get a palindrome (530346643035).

The spelling of 320133312012 in words is "three hundred twenty billion, one hundred thirty-three million, three hundred twelve thousand, twelve".