20204403103 has 16 divisors (see below), whose sum is σ = 21696547840. Its totient is φ = 18757461600.

The previous prime is 20204403071. The next prime is 20204403119. The reversal of 20204403103 is 30130440202.

It is a cyclic number.

It is not a de Polignac number, because 20204403103 - 2⁵ = 20204403071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204403133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281926 + ... + 346252.

It is an arithmetic number, because the mean of its divisors is an integer number (1356034240).

Almost surely, 2^20204403103 is an apocalyptic number.

20204403103 is a deficient number, since it is larger than the sum of its proper divisors (1492144737).

20204403103 is a wasteful number, since it uses less digits than its factorization.

20204403103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64678.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20204403103 its reverse (30130440202), we get a palindrome (50334843305).

The spelling of 20204403103 in words is "twenty billion, two hundred four million, four hundred three thousand, one hundred three".