320200313220 has 96 divisors (see below), whose sum is σ = 996422394240. Its totient is φ = 85365866880.

The previous prime is 320200313207. The next prime is 320200313239. The reversal of 320200313220 is 22313002023.

It is a happy number.

320200313220 is a `hidden beast` number, since 320 + 20 + 0 + 3 + 1 + 322 + 0 = 666.

It is a super-2 number, since 2×320200313220² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 320200313193 and 320200313202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2203534 + ... + 2344346.

It is an arithmetic number, because the mean of its divisors is an integer number (10379399940).

Almost surely, 2^320200313220 is an apocalyptic number.

320200313220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320200313220 is an abundant number, since it is smaller than the sum of its proper divisors (676222081020).

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

320200313220 is a wasteful number, since it uses less digits than its factorization.

320200313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145042 (or 145034 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 320200313220 its reverse (22313002023), we get a palindrome (342513315243).

The spelling of 320200313220 in words is "three hundred twenty billion, two hundred million, three hundred thirteen thousand, two hundred twenty".