320031310000 has 50 divisors (see below), whose sum is σ = 774827828852. Its totient is φ = 128012520000.

The previous prime is 320031309989. The next prime is 320031310051. The reversal of 320031310000 is 13130023.

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×320031310000² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15991566 + ... + 16011565.

Almost surely, 2^320031310000 is an apocalyptic number.

It is an amenable number.

320031310000 is an abundant number, since it is smaller than the sum of its proper divisors (454796518852).

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

320031310000 is an equidigital number, since it uses as much as digits as its factorization.

320031310000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32003159 (or 32003138 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 320031310000 its reverse (13130023), we get a palindrome (320044440023).

The spelling of 320031310000 in words is "three hundred twenty billion, thirty-one million, three hundred ten thousand".