220523421330 has 48 divisors (see below), whose sum is σ = 573404232024. Its totient is φ = 58801800960.

The previous prime is 220523421323. The next prime is 220523421367. The reversal of 220523421330 is 33124325022.

220523421330 is a `hidden beast` number, since 2 + 2 + 0 + 523 + 4 + 2 + 133 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 168849493569 + 51673927761 = 410913^2 + 227319^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220523421294 and 220523421303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1205262 + ... + 1376118.

Almost surely, 2^220523421330 is an apocalyptic number.

220523421330 is an abundant number, since it is smaller than the sum of its proper divisors (352880810694).

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

220523421330 is a wasteful number, since it uses less digits than its factorization.

220523421330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185211 (or 185208 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 220523421330 its reverse (33124325022), we get a palindrome (253647746352).

The spelling of 220523421330 in words is "two hundred twenty billion, five hundred twenty-three million, four hundred twenty-one thousand, three hundred thirty".