11242111 has 4 divisors (see below), whose sum is σ = 11629800. Its totient is φ = 10854424.

The previous prime is 11242109. The next prime is 11242123. The reversal of 11242111 is 11124211.

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 11242111 - 2¹ = 11242109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11242091 and 11242100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11242711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193801 + ... + 193858.

It is an arithmetic number, because the mean of its divisors is an integer number (2907450).

Almost surely, 2^11242111 is an apocalyptic number.

11242111 is a deficient number, since it is larger than the sum of its proper divisors (387689).

11242111 is an equidigital number, since it uses as much as digits as its factorization.

11242111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387688.

The product of its digits is 16, while the sum is 13.

The square root of 11242111 is about 3352.9257373226. The cubic root of 11242111 is about 224.0178490773.

Adding to 11242111 its reverse (11124211), we get a palindrome (22366322).

The spelling of 11242111 in words is "eleven million, two hundred forty-two thousand, one hundred eleven".