320230321000000 has 196 divisors, whose sum is σ = 794613201867700. Its totient is φ = 128043417600000.

The previous prime is 320230320999991. The next prime is 320230321000039. The reversal of 320230321000000 is 123032023.

It can be written as a sum of positive squares in 14 ways, for example, as 281899264500736 + 38331056499264 = 16789856^2 + 6191208^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2688940456 + ... + 2689059544.

Almost surely, 2^{320230321000000} 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 320230321000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397306600933850).

320230321000000 is an abundant number, since it is smaller than the sum of its proper divisors (474382880867700).

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

320230321000000 is an frugal number, since it uses more digits than its factorization.

320230321000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121820 (or 121785 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 320230321000000 its reverse (123032023), we get a palindrome (320230444032023).

The spelling of 320230321000000 in words is "three hundred twenty trillion, two hundred thirty billion, three hundred twenty-one million", and thus it is an aban number.