11171141 has 4 divisors (see below), whose sum is σ = 11203500. Its totient is φ = 11138784.

The previous prime is 11171137. The next prime is 11171179. The reversal of 11171141 is 14117111.

11171141 is digitally balanced in base 2, 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 can be written as a sum of positive squares in 2 ways, for example, as 2819041 + 8352100 = 1679^2 + 2890^2 .

It is a cyclic number.

It is not a de Polignac number, because 11171141 - 2² = 11171137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11171341) 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, 15656 + ... + 16353.

It is an arithmetic number, because the mean of its divisors is an integer number (2800875).

Almost surely, 2^11171141 is an apocalyptic number.

It is an amenable number.

11171141 is a deficient number, since it is larger than the sum of its proper divisors (32359).

11171141 is an equidigital number, since it uses as much as digits as its factorization.

11171141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32358.

The product of its digits is 28, while the sum is 17.

The square root of 11171141 is about 3342.3256873022. The cubic root of 11171141 is about 223.5454550065.

Adding to 11171141 its reverse (14117111), we get a palindrome (25288252).

The spelling of 11171141 in words is "eleven million, one hundred seventy-one thousand, one hundred forty-one".