20503335130 has 16 divisors (see below), whose sum is σ = 36908411040. Its totient is φ = 8200798992.

The previous prime is 20503335103. The next prime is 20503335137. The reversal of 20503335130 is 3153330502.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20503335095 and 20503335104.

It is not an unprimeable number, because it can be changed into a prime (20503335137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118537 + ... + 234643.

It is an arithmetic number, because the mean of its divisors is an integer number (2306775690).

Almost surely, 2^20503335130 is an apocalyptic number.

20503335130 is a deficient number, since it is larger than the sum of its proper divisors (16405075910).

20503335130 is a wasteful number, since it uses less digits than its factorization.

20503335130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133773.

The product of its (nonzero) digits is 4050, while the sum is 25.

Adding to 20503335130 its reverse (3153330502), we get a palindrome (23656665632).

The spelling of 20503335130 in words is "twenty billion, five hundred three million, three hundred thirty-five thousand, one hundred thirty".