320131243000 has 64 divisors (see below), whose sum is σ = 749211109920. Its totient is φ = 128034720000.

The previous prime is 320131242919. The next prime is 320131243079. The reversal of 320131243000 is 342131023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9025300 + ... + 9060700.

Almost surely, 2^320131243000 is an apocalyptic number.

It is an amenable number.

320131243000 is an abundant number, since it is smaller than the sum of its proper divisors (429079866920).

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

320131243000 is a wasteful number, since it uses less digits than its factorization.

320131243000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44465 (or 44451 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 320131243000 its reverse (342131023), we get a palindrome (320473374023).

The spelling of 320131243000 in words is "three hundred twenty billion, one hundred thirty-one million, two hundred forty-three thousand".