11420171 has 16 divisors (see below), whose sum is σ = 13659840. Its totient is φ = 9340800.

The previous prime is 11420131. The next prime is 11420173. The reversal of 11420171 is 17102411.

It is a de Polignac number, because none of the positive numbers 2^k-11420171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11420173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20225 + ... + 20781.

It is an arithmetic number, because the mean of its divisors is an integer number (853740).

Almost surely, 2^11420171 is an apocalyptic number.

11420171 is a deficient number, since it is larger than the sum of its proper divisors (2239669).

11420171 is a wasteful number, since it uses less digits than its factorization.

11420171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 11420171 is about 3379.3743503791. The cubic root of 11420171 is about 225.1943735994.

Adding to 11420171 its reverse (17102411), we get a palindrome (28522582).

The spelling of 11420171 in words is "eleven million, four hundred twenty thousand, one hundred seventy-one".