20021330230 has 16 divisors (see below), whose sum is σ = 39314612304. Its totient is φ = 7280483680.

The previous prime is 20021330209. The next prime is 20021330239. The reversal of 20021330230 is 3203312002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021330239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91005937 + ... + 91006156.

It is an arithmetic number, because the mean of its divisors is an integer number (2457163269).

Almost surely, 2^20021330230 is an apocalyptic number.

20021330230 is a deficient number, since it is larger than the sum of its proper divisors (19293282074).

20021330230 is a wasteful number, since it uses less digits than its factorization.

20021330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182012111.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20021330230 its reverse (3203312002), we get a palindrome (23224642232).

The spelling of 20021330230 in words is "twenty billion, twenty-one million, three hundred thirty thousand, two hundred thirty".