320304252144 has 40 divisors (see below), whose sum is σ = 827980894720. Its totient is φ = 106699923648.

The previous prime is 320304252143. The next prime is 320304252157. The reversal of 320304252144 is 441252403023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320304252143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2054014 + ... + 2204445.

It is an arithmetic number, because the mean of its divisors is an integer number (20699522368).

Almost surely, 2^320304252144 is an apocalyptic number.

It is an amenable number.

320304252144 is an abundant number, since it is smaller than the sum of its proper divisors (507676642576).

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

320304252144 is a wasteful number, since it uses less digits than its factorization.

320304252144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260037 (or 4260031 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 320304252144 its reverse (441252403023), we get a palindrome (761556655167).

The spelling of 320304252144 in words is "three hundred twenty billion, three hundred four million, two hundred fifty-two thousand, one hundred forty-four".