111103 has 2 divisors, whose sum is σ = 111104. Its totient is φ = 111102.

The previous prime is 111091. The next prime is 111109. The reversal of 111103 is 301111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111103 - 2¹³ = 102911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551 + 55552.

It is an arithmetic number, because the mean of its divisors is an integer number (55552).

2¹¹¹¹⁰³ is an apocalyptic number.

111103 is a deficient number, since it is larger than the sum of its proper divisors (1).

111103 is an equidigital number, since it uses as much as digits as its factorization.

111103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 111103 is about 333.3211664446. The cubic root of 111103 is about 48.0738158238.

Adding to 111103 its reverse (301111), we get a palindrome (412214).

The spelling of 111103 in words is "one hundred eleven thousand, one hundred three", and thus it is an iban number.