Search a number
11071 is a prime number

11071 has 2 divisors, whose sum is σ = 11072. Its totient is φ = 11070.

The previous prime is 11069. The next prime is 11083. The reversal of 11071 is 17011.

11071 is nontrivially palindromic in base 9.

It is a weak prime.

It is an emirp because it is prime and its reverse (17011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11071 - 21 = 11069 is a prime.

Together with 11069, it forms a pair of twin primes.

It is a Chen prime.

11071 is an undulating number in base 9.

It is equal to p1342 and since 11071 and 1342 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5535 + 5536.

It is an arithmetic number, because the mean of its divisors is an integer number (5536).

211071 is an apocalyptic number.

11071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11071 is an equidigital number, since it uses as much as digits as its factorization.

11071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7, while the sum is 10.

The square root of 11071 is about 105.2188196094. The cubic root of 11071 is about 22.2875475935.

Adding to 11071 its reverse (17011), we get a palindrome (28082).

It can be divided in two parts, 110 and 71, that added together give a palindrome (181).

The spelling of 11071 in words is "eleven thousand, seventy-one", and thus it is an iban number.