320422313000 has 64 divisors (see below), whose sum is σ = 755261442000. Its totient is φ = 127233331200.

The previous prime is 320422312979. The next prime is 320422313011. The reversal of 320422313000 is 313224023.

It can be written as a sum of positive squares in 8 ways, for example, as 172712164 + 320249600836 = 13142^2 + 565906^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032425 + ... + 1306424.

Almost surely, 2^320422313000 is an apocalyptic number.

It is an amenable number.

320422313000 is an abundant number, since it is smaller than the sum of its proper divisors (434839129000).

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

320422313000 is a wasteful number, since it uses less digits than its factorization.

320422313000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339007 (or 2338993 counting only the distinct ones).

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

Adding to 320422313000 its reverse (313224023), we get a palindrome (320735537023).

The spelling of 320422313000 in words is "three hundred twenty billion, four hundred twenty-two million, three hundred thirteen thousand".