20424321203 has 48 divisors (see below), whose sum is σ = 26083759968. Its totient is φ = 15825638400.

The previous prime is 20424321191. The next prime is 20424321217. The reversal of 20424321203 is 30212342402.

It is a de Polignac number, because none of the positive numbers 2^k-20424321203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424321293) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1410068 + ... + 1424478.

It is an arithmetic number, because the mean of its divisors is an integer number (543411666).

Almost surely, 2^20424321203 is an apocalyptic number.

20424321203 is a deficient number, since it is larger than the sum of its proper divisors (5659438765).

20424321203 is a wasteful number, since it uses less digits than its factorization.

20424321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14516 (or 14505 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20424321203 its reverse (30212342402), we get a palindrome (50636663605).

The spelling of 20424321203 in words is "twenty billion, four hundred twenty-four million, three hundred twenty-one thousand, two hundred three".