320442231140 has 48 divisors (see below), whose sum is σ = 675626857920. Its totient is φ = 127663236480.

The previous prime is 320442231133. The next prime is 320442231209. The reversal of 320442231140 is 41132244023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25403435 + ... + 25416045.

It is an arithmetic number, because the mean of its divisors is an integer number (14075559540).

Almost surely, 2^320442231140 is an apocalyptic number.

It is an amenable number.

320442231140 is an abundant number, since it is smaller than the sum of its proper divisors (355184626780).

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

320442231140 is a wasteful number, since it uses less digits than its factorization.

320442231140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17612 (or 17610 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 320442231140 its reverse (41132244023), we get a palindrome (361574475163).

The spelling of 320442231140 in words is "three hundred twenty billion, four hundred forty-two million, two hundred thirty-one thousand, one hundred forty".