21303110020130 has 16 divisors (see below), whose sum is σ = 38439352562040. Its totient is φ = 8500409668992.

The previous prime is 21303110020121. The next prime is 21303110020151. The reversal of 21303110020130 is 3102001130312.

It can be written as a sum of positive squares in 4 ways, for example, as 19012660843201 + 2290449176929 = 4360351^2 + 1513423^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21303110020099 and 21303110020108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2604288089 + ... + 2604296268.

Almost surely, 2^{21303110020130} is an apocalyptic number.

21303110020130 is a deficient number, since it is larger than the sum of its proper divisors (17136242541910).

21303110020130 is a wasteful number, since it uses less digits than its factorization.

21303110020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208584773.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21303110020130 its reverse (3102001130312), we get a palindrome (24405111150442).

The spelling of 21303110020130 in words is "twenty-one trillion, three hundred three billion, one hundred ten million, twenty thousand, one hundred thirty".