320332332012 has 96 divisors (see below), whose sum is σ = 932775567360. Its totient is φ = 83122873920.

The previous prime is 320332331971. The next prime is 320332332013. The reversal of 320332332012 is 210233233023.

It is a super-2 number, since 2×320332332012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320332332013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 793203 + ... + 1126869.

It is an arithmetic number, because the mean of its divisors is an integer number (9716412160).

Almost surely, 2^320332332012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320332332012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466387783680).

320332332012 is an abundant number, since it is smaller than the sum of its proper divisors (612443235348).

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

320332332012 is a wasteful number, since it uses less digits than its factorization.

320332332012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334731 (or 334729 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 320332332012 its reverse (210233233023), we get a palindrome (530565565035).

The spelling of 320332332012 in words is "three hundred twenty billion, three hundred thirty-two million, three hundred thirty-two thousand, twelve".