320315032000 has 56 divisors (see below), whose sum is σ = 793260196560. Its totient is φ = 128126009600.

The previous prime is 320315031989. The next prime is 320315032007. The reversal of 320315032000 is 230513023.

It is a super-2 number, since 2×320315032000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320315032007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20011690 + ... + 20027689.

Almost surely, 2^320315032000 is an apocalyptic number.

It is an amenable number.

320315032000 is an abundant number, since it is smaller than the sum of its proper divisors (472945164560).

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

320315032000 is an equidigital number, since it uses as much as digits as its factorization.

320315032000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40039406 (or 40039386 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

Adding to 320315032000 its reverse (230513023), we get a palindrome (320545545023).

The spelling of 320315032000 in words is "three hundred twenty billion, three hundred fifteen million, thirty-two thousand".