13111103 has 8 divisors (see below), whose sum is σ = 13895280. Its totient is φ = 12349120.

The previous prime is 13111093. The next prime is 13111117. The reversal of 13111103 is 30111131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13111103 - 2¹² = 13107007 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 (13111303) 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 in 7 ways as a sum of consecutive naturals, for example, 4325 + ... + 6702.

It is an arithmetic number, because the mean of its divisors is an integer number (1736910).

Almost surely, 2^13111103 is an apocalyptic number.

13111103 is a deficient number, since it is larger than the sum of its proper divisors (784177).

13111103 is a wasteful number, since it uses less digits than its factorization.

13111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11097.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 13111103 is about 3620.9257103674. The cubic root of 13111103 is about 235.8014165444.

Adding to 13111103 its reverse (30111131), we get a palindrome (43222234).

The spelling of 13111103 in words is "thirteen million, one hundred eleven thousand, one hundred three".