11203110103 has 4 divisors (see below), whose sum is σ = 11203335280. Its totient is φ = 11202884928.

The previous prime is 11203110101. The next prime is 11203110187. The reversal of 11203110103 is 30101130211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30101130211 = 61 ⋅493461151.

It is a cyclic number.

It is not a de Polignac number, because 11203110103 - 2¹ = 11203110101 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 (11203110101) 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, 1275 + ... + 149692.

It is an arithmetic number, because the mean of its divisors is an integer number (2800833820).

Almost surely, 2^11203110103 is an apocalyptic number.

11203110103 is a deficient number, since it is larger than the sum of its proper divisors (225177).

11203110103 is an equidigital number, since it uses as much as digits as its factorization.

11203110103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225176.

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

Adding to 11203110103 its reverse (30101130211), we get a palindrome (41304240314).

The spelling of 11203110103 in words is "eleven billion, two hundred three million, one hundred ten thousand, one hundred three".