320140223200 has 144 divisors (see below), whose sum is σ = 895232701440. Its totient is φ = 109511493120.

The previous prime is 320140223173. The next prime is 320140223201. The reversal of 320140223200 is 2322041023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320140223201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2393289 + ... + 2523511.

It is an arithmetic number, because the mean of its divisors is an integer number (6216893760).

Almost surely, 2^320140223200 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 320140223200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447616350720).

320140223200 is an abundant number, since it is smaller than the sum of its proper divisors (575092478240).

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

320140223200 is a wasteful number, since it uses less digits than its factorization.

320140223200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130689 (or 130676 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 320140223200 its reverse (2322041023), we get a palindrome (322462264223).

The spelling of 320140223200 in words is "three hundred twenty billion, one hundred forty million, two hundred twenty-three thousand, two hundred".