11239271 has 2 divisors, whose sum is σ = 11239272. Its totient is φ = 11239270.

The previous prime is 11239259. The next prime is 11239273. The reversal of 11239271 is 17293211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11239271 is a prime.

It is a super-2 number, since 2×11239271² = 252642425222882, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 11239273, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11239271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11239273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5619635 + 5619636.

It is an arithmetic number, because the mean of its divisors is an integer number (5619636).

Almost surely, 2^11239271 is an apocalyptic number.

11239271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11239271 is an equidigital number, since it uses as much as digits as its factorization.

11239271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 26.

The square root of 11239271 is about 3352.5021998501. The cubic root of 11239271 is about 223.9989835732.

The spelling of 11239271 in words is "eleven million, two hundred thirty-nine thousand, two hundred seventy-one".