320302032011312 has 160 divisors (see below), whose sum is σ = 685337886817920. Its totient is φ = 144116779253760.

The previous prime is 320302032011293. The next prime is 320302032011321. The reversal of 320302032011312 is 213110230203023.

It is a super-2 number, since 2×320302032011312² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658479773 + ... + 658966019.

It is an arithmetic number, because the mean of its divisors is an integer number (4283361792612).

Almost surely, 2^{320302032011312} 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 320302032011312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342668943408960).

320302032011312 is an abundant number, since it is smaller than the sum of its proper divisors (365035854806608).

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

320302032011312 is a wasteful number, since it uses less digits than its factorization.

320302032011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486791 (or 486785 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 320302032011312 its reverse (213110230203023), we get a palindrome (533412262214335).

The spelling of 320302032011312 in words is "three hundred twenty trillion, three hundred two billion, thirty-two million, eleven thousand, three hundred twelve".