320303231000 has 128 divisors (see below), whose sum is σ = 777901924800. Its totient is φ = 123296947200.

The previous prime is 320303230987. The next prime is 320303231111. The reversal of 320303231000 is 132303023.

It is a super-2 number, since 2×320303231000² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320303231000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8885012 + ... + 8920988.

Almost surely, 2^320303231000 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 320303231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388950962400).

320303231000 is an abundant number, since it is smaller than the sum of its proper divisors (457598693800).

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

320303231000 is a wasteful number, since it uses less digits than its factorization.

320303231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36334 (or 36320 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 320303231000 its reverse (132303023), we get a palindrome (320435534023).

The spelling of 320303231000 in words is "three hundred twenty billion, three hundred three million, two hundred thirty-one thousand".