11440111 has 4 divisors (see below), whose sum is σ = 11448424. Its totient is φ = 11431800.

The previous prime is 11440097. The next prime is 11440127. The reversal of 11440111 is 11104411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11440111 - 2¹³ = 11431919 is a prime.

It is a super-2 number, since 2×11440111² = 261752279384642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11440091 and 11440100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11440151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1545 + ... + 5026.

It is an arithmetic number, because the mean of its divisors is an integer number (2862106).

Almost surely, 2^11440111 is an apocalyptic number.

11440111 is a deficient number, since it is larger than the sum of its proper divisors (8313).

11440111 is an equidigital number, since it uses as much as digits as its factorization.

11440111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312.

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

The square root of 11440111 is about 3382.3233139367. The cubic root of 11440111 is about 225.3253630243.

Adding to 11440111 its reverse (11104411), we get a palindrome (22544522).

The spelling of 11440111 in words is "eleven million, four hundred forty thousand, one hundred eleven".