320344231000 has 64 divisors (see below), whose sum is σ = 749689668000. Its totient is φ = 128123305600.

The previous prime is 320344230971. The next prime is 320344231013. The reversal of 320344231000 is 132443023.

It is a happy number.

It is a super-2 number, since 2×320344231000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16219131 + ... + 16238869.

Almost surely, 2^320344231000 is an apocalyptic number.

It is an amenable number.

320344231000 is an abundant number, since it is smaller than the sum of its proper divisors (429345437000).

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

320344231000 is a wasteful number, since it uses less digits than its factorization.

320344231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35989 (or 35975 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 320344231000 its reverse (132443023), we get a palindrome (320476674023).

The spelling of 320344231000 in words is "three hundred twenty billion, three hundred forty-four million, two hundred thirty-one thousand".