320123324240 has 40 divisors (see below), whose sum is σ = 745766517888. Its totient is φ = 127794742400.

The previous prime is 320123324231. The next prime is 320123324281. The reversal of 320123324240 is 42423321023.

It is a tau number, because it is divible by the number of its divisors (40).

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, 3937436 + ... + 4017915.

Almost surely, 2^320123324240 is an apocalyptic number.

It is an amenable number.

320123324240 is an abundant number, since it is smaller than the sum of its proper divisors (425643193648).

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

320123324240 is a wasteful number, since it uses less digits than its factorization.

320123324240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7955867 (or 7955861 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 320123324240 its reverse (42423321023), we get a palindrome (362546645263).

The spelling of 320123324240 in words is "three hundred twenty billion, one hundred twenty-three million, three hundred twenty-four thousand, two hundred forty".