20043000103 has 4 divisors (see below), whose sum is σ = 22906285840. Its totient is φ = 17179714368.

The previous prime is 20043000091. The next prime is 20043000113. The reversal of 20043000103 is 30100034002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20043000103 - 2⁹ = 20042999591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043000113) 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 3 ways as a sum of consecutive naturals, for example, 1431642858 + ... + 1431642871.

It is an arithmetic number, because the mean of its divisors is an integer number (5726571460).

Almost surely, 2^20043000103 is an apocalyptic number.

20043000103 is a deficient number, since it is larger than the sum of its proper divisors (2863285737).

20043000103 is an equidigital number, since it uses as much as digits as its factorization.

20043000103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863285736.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20043000103 its reverse (30100034002), we get a palindrome (50143034105).

The spelling of 20043000103 in words is "twenty billion, forty-three million, one hundred three", and thus it is an aban number.