11171071 has 4 divisors (see below), whose sum is σ = 11279632. Its totient is φ = 11062512.

The previous prime is 11171063. The next prime is 11171087. The reversal of 11171071 is 17017111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17017111 = 127 ⋅133993.

It is a cyclic number.

It is not a de Polignac number, because 11171071 - 2³ = 11171063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11171051) 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, 54126 + ... + 54331.

It is an arithmetic number, because the mean of its divisors is an integer number (2819908).

Almost surely, 2^11171071 is an apocalyptic number.

11171071 is a deficient number, since it is larger than the sum of its proper divisors (108561).

11171071 is a wasteful number, since it uses less digits than its factorization.

11171071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108560.

The product of its (nonzero) digits is 49, while the sum is 19.

The square root of 11171071 is about 3342.3152155355. The cubic root of 11171071 is about 223.5449880827.

Adding to 11171071 its reverse (17017111), we get a palindrome (28188182).

The spelling of 11171071 in words is "eleven million, one hundred seventy-one thousand, seventy-one".