11031311171 has 2 divisors, whose sum is σ = 11031311172. Its totient is φ = 11031311170.

The previous prime is 11031311119. The next prime is 11031311173. The reversal of 11031311171 is 17111313011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11031311171 - 2⁶ = 11031311107 is a prime.

Together with 11031311173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11031311173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515655585 + 5515655586.

It is an arithmetic number, because the mean of its divisors is an integer number (5515655586).

Almost surely, 2^11031311171 is an apocalyptic number.

11031311171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11031311171 is an equidigital number, since it uses as much as digits as its factorization.

11031311171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 20.

Adding to 11031311171 its reverse (17111313011), we get a palindrome (28142624182).

The spelling of 11031311171 in words is "eleven billion, thirty-one million, three hundred eleven thousand, one hundred seventy-one".