20443233130 has 16 divisors (see below), whose sum is σ = 36890516520. Its totient is φ = 8156693952.

The previous prime is 20443233121. The next prime is 20443233191. The reversal of 20443233130 is 3133234402.

It can be written as a sum of positive squares in 4 ways, for example, as 17763824961 + 2679408169 = 133281^2 + 51763^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20443233095 and 20443233104.

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 7 ways as a sum of consecutive naturals, for example, 2570745 + ... + 2578684.

Almost surely, 2^20443233130 is an apocalyptic number.

20443233130 is a deficient number, since it is larger than the sum of its proper divisors (16447283390).

20443233130 is a wasteful number, since it uses less digits than its factorization.

20443233130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149833.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20443233130 its reverse (3133234402), we get a palindrome (23576467532).

The spelling of 20443233130 in words is "twenty billion, four hundred forty-three million, two hundred thirty-three thousand, one hundred thirty".