320424444312 has 128 divisors (see below), whose sum is σ = 918751196160. Its totient is φ = 91225128960.

The previous prime is 320424444311. The next prime is 320424444337. The reversal of 320424444312 is 213444424023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320424444311) 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, 71505112 + ... + 71509592.

It is an arithmetic number, because the mean of its divisors is an integer number (7177743720).

Almost surely, 2^320424444312 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 320424444312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459375598080).

320424444312 is an abundant number, since it is smaller than the sum of its proper divisors (598326751848).

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

320424444312 is a wasteful number, since it uses less digits than its factorization.

320424444312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913 (or 5909 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 320424444312 its reverse (213444424023), we get a palindrome (533868868335).

The spelling of 320424444312 in words is "three hundred twenty billion, four hundred twenty-four million, four hundred forty-four thousand, three hundred twelve".