111100203103 has 16 divisors (see below), whose sum is σ = 113611636800. Its totient is φ = 108617555200.

The previous prime is 111100203073. The next prime is 111100203113. The reversal of 111100203103 is 301302001111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111100203103 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 (111100203113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6518733 + ... + 6535753.

It is an arithmetic number, because the mean of its divisors is an integer number (7100727300).

Almost surely, 2^111100203103 is an apocalyptic number.

111100203103 is a deficient number, since it is larger than the sum of its proper divisors (2511433697).

111100203103 is a wasteful number, since it uses less digits than its factorization.

111100203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17858.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 111100203103 its reverse (301302001111), we get a palindrome (412402204214).

The spelling of 111100203103 in words is "one hundred eleven billion, one hundred million, two hundred three thousand, one hundred three".