320320231332320 has 288 divisors, whose sum is σ = 808244143560000. Its totient is φ = 119938487353344.

The previous prime is 320320231332293. The next prime is 320320231332383. The reversal of 320320231332320 is 23233132023023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31736865194 + ... + 31736875286.

It is an arithmetic number, because the mean of its divisors is an integer number (2806403276250).

Almost surely, 2^{320320231332320} 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 320320231332320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404122071780000).

320320231332320 is an abundant number, since it is smaller than the sum of its proper divisors (487923912227680).

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

320320231332320 is a wasteful number, since it uses less digits than its factorization.

320320231332320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13790 (or 13765 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 29.

Adding to 320320231332320 its reverse (23233132023023), we get a palindrome (343553363355343).

The spelling of 320320231332320 in words is "three hundred twenty trillion, three hundred twenty billion, two hundred thirty-one million, three hundred thirty-two thousand, three hundred twenty".