11271103 has 4 divisors (see below), whose sum is σ = 11282560. Its totient is φ = 11259648.

The previous prime is 11271097. The next prime is 11271107. The reversal of 11271103 is 30117211.

11271103 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11271103 - 2²¹ = 9173951 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 (11271107) 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, 4098 + ... + 6271.

It is an arithmetic number, because the mean of its divisors is an integer number (2820640).

Almost surely, 2^11271103 is an apocalyptic number.

11271103 is a deficient number, since it is larger than the sum of its proper divisors (11457).

11271103 is a wasteful number, since it uses less digits than its factorization.

11271103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11456.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 11271103 is about 3357.2463418701. The cubic root of 11271103 is about 224.2102551250.

Adding to 11271103 its reverse (30117211), we get a palindrome (41388314).

The spelling of 11271103 in words is "eleven million, two hundred seventy-one thousand, one hundred three".