11811141 has 36 divisors (see below), whose sum is σ = 19156800. Its totient is φ = 6991488.

The previous prime is 11811109. The next prime is 11811187. The reversal of 11811141 is 14111811.

It is a happy number.

It is not a de Polignac number, because 11811141 - 2⁵ = 11811109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11816141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 49300 + ... + 49538.

Almost surely, 2^11811141 is an apocalyptic number.

It is an amenable number.

11811141 is a deficient number, since it is larger than the sum of its proper divisors (7345659).

11811141 is a wasteful number, since it uses less digits than its factorization.

11811141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 278 counting only the distinct ones).

The product of its digits is 32, while the sum is 18.

The square root of 11811141 is about 3436.7340601216. The cubic root of 11811141 is about 227.7354387474.

Adding to 11811141 its reverse (14111811), we get a palindrome (25922952).

The spelling of 11811141 in words is "eleven million, eight hundred eleven thousand, one hundred forty-one".