11240111 has 4 divisors (see below), whose sum is σ = 11901312. Its totient is φ = 10578912.

The previous prime is 11240087. The next prime is 11240129. The reversal of 11240111 is 11104211.

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 11240111 - 2²² = 7045807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11240092 and 11240101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240161) 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 3 ways as a sum of consecutive naturals, for example, 330575 + ... + 330608.

It is an arithmetic number, because the mean of its divisors is an integer number (2975328).

Almost surely, 2^11240111 is an apocalyptic number.

11240111 is a deficient number, since it is larger than the sum of its proper divisors (661201).

11240111 is an equidigital number, since it uses as much as digits as its factorization.

11240111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661200.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 11240111 is about 3352.6274770693. The cubic root of 11240111 is about 224.0045638420.

Adding to 11240111 its reverse (11104211), we get a palindrome (22344322).

The spelling of 11240111 in words is "eleven million, two hundred forty thousand, one hundred eleven".