320112440020 has 24 divisors (see below), whose sum is σ = 672303034368. Its totient is φ = 128032231200.

The previous prime is 320112440009. The next prime is 320112440069. The reversal of 320112440020 is 20044211023.

It is a self number, because there is not a number n which added to its sum of digits gives 320112440020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589276 + ... + 993715.

It is an arithmetic number, because the mean of its divisors is an integer number (28012626432).

Almost surely, 2^320112440020 is an apocalyptic number.

It is an amenable number.

320112440020 is an abundant number, since it is smaller than the sum of its proper divisors (352190594348).

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

320112440020 is a wasteful number, since it uses less digits than its factorization.

320112440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593111 (or 1593109 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 320112440020 its reverse (20044211023), we get a palindrome (340156651043).

The spelling of 320112440020 in words is "three hundred twenty billion, one hundred twelve million, four hundred forty thousand, twenty".