11571110171 has 8 divisors (see below), whose sum is σ = 12121636800. Its totient is φ = 11030685120.

The previous prime is 11571110167. The next prime is 11571110237. The reversal of 11571110171 is 17101117511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11571110171 - 2² = 11571110167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11571110171.

It is not an unprimeable number, because it can be changed into a prime (11571110071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2523050 + ... + 2527631.

It is an arithmetic number, because the mean of its divisors is an integer number (1515204600).

Almost surely, 2^11571110171 is an apocalyptic number.

11571110171 is a deficient number, since it is larger than the sum of its proper divisors (550526629).

11571110171 is an equidigital number, since it uses as much as digits as its factorization.

11571110171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050789.

The product of its (nonzero) digits is 245, while the sum is 26.

Adding to 11571110171 its reverse (17101117511), we get a palindrome (28672227682).

The spelling of 11571110171 in words is "eleven billion, five hundred seventy-one million, one hundred ten thousand, one hundred seventy-one".