20503032030 has 96 divisors (see below), whose sum is σ = 59260481280. Its totient is φ = 4884088320.

The previous prime is 20503032013. The next prime is 20503032059. The reversal of 20503032030 is 3023030502.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20503031994 and 20503032012.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 246375 + ... + 318914.

It is an arithmetic number, because the mean of its divisors is an integer number (617296680).

Almost surely, 2^20503032030 is an apocalyptic number.

20503032030 is an abundant number, since it is smaller than the sum of its proper divisors (38757449250).

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

20503032030 is a wasteful number, since it uses less digits than its factorization.

20503032030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565346 (or 565343 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

Adding to 20503032030 its reverse (3023030502), we get a palindrome (23526062532).

The spelling of 20503032030 in words is "twenty billion, five hundred three million, thirty-two thousand, thirty".