320213455040 has 28 divisors (see below), whose sum is σ = 762508290576. Its totient is φ = 128085381888.

The previous prime is 320213455039. The next prime is 320213455049. The reversal of 320213455040 is 40554312023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320213454994 and 320213455012.

It is not an unprimeable number, because it can be changed into a prime (320213455049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500333204 + ... + 500333843.

Almost surely, 2^320213455040 is an apocalyptic number.

It is an amenable number.

320213455040 is an abundant number, since it is smaller than the sum of its proper divisors (442294835536).

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

320213455040 is a wasteful number, since it uses less digits than its factorization.

320213455040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000667064 (or 1000667054 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 320213455040 its reverse (40554312023), we get a palindrome (360767767063).

The spelling of 320213455040 in words is "three hundred twenty billion, two hundred thirteen million, four hundred fifty-five thousand, forty".