11201131171 has 2 divisors, whose sum is σ = 11201131172. Its totient is φ = 11201131170.

The previous prime is 11201131159. The next prime is 11201131177. The reversal of 11201131171 is 17113110211.

It is a strong prime.

It is an emirp because it is prime and its reverse (17113110211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11201131171 - 2⁷ = 11201131043 is a prime.

It is not a weakly prime, because it can be changed into another prime (11201131177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600565585 + 5600565586.

It is an arithmetic number, because the mean of its divisors is an integer number (5600565586).

Almost surely, 2^11201131171 is an apocalyptic number.

11201131171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201131171 is an equidigital number, since it uses as much as digits as its factorization.

11201131171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 19.

Adding to 11201131171 its reverse (17113110211), we get a palindrome (28314241382).

The spelling of 11201131171 in words is "eleven billion, two hundred one million, one hundred thirty-one thousand, one hundred seventy-one".