11111103 has 12 divisors (see below), whose sum is σ = 16177408. Its totient is φ = 7348320.

The previous prime is 11111101. The next prime is 11111117. The reversal of 11111103 is 30111111.

11111103 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11111103 - 2¹ = 11111101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3718 + ... + 6003.

Almost surely, 2^11111103 is an apocalyptic number.

11111103 is a deficient number, since it is larger than the sum of its proper divisors (5066305).

11111103 is a wasteful number, since it uses less digits than its factorization.

11111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9854 (or 9851 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 9.

The square root of 11111103 is about 3333.3321166664. The cubic root of 11111103 is about 223.1442623956.

Adding to 11111103 its reverse (30111111), we get a palindrome (41222214).

The spelling of 11111103 in words is "eleven million, one hundred eleven thousand, one hundred three".