320431340000 has 60 divisors (see below), whose sum is σ = 788309210304. Its totient is φ = 128172528000.

The previous prime is 320431339931. The next prime is 320431340029. The reversal of 320431340000 is 43134023.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 7990784 + ... + 8030783.

Almost surely, 2^320431340000 is an apocalyptic number.

It is an amenable number.

320431340000 is an abundant number, since it is smaller than the sum of its proper divisors (467877870304).

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

320431340000 is an equidigital number, since it uses as much as digits as its factorization.

320431340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16021597 (or 16021574 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 320431340000 its reverse (43134023), we get a palindrome (320474474023).

The spelling of 320431340000 in words is "three hundred twenty billion, four hundred thirty-one million, three hundred forty thousand".