11822911 has 2 divisors, whose sum is σ = 11822912. Its totient is φ = 11822910.

The previous prime is 11822857. The next prime is 11822927. The reversal of 11822911 is 11922811.

It is a strong prime.

It is an emirp because it is prime and its reverse (11922811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11822911 - 2¹¹ = 11820863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11822611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5911455 + 5911456.

It is an arithmetic number, because the mean of its divisors is an integer number (5911456).

Almost surely, 2^11822911 is an apocalyptic number.

11822911 is a deficient number, since it is larger than the sum of its proper divisors (1).

11822911 is an equidigital number, since it uses as much as digits as its factorization.

11822911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 25.

The square root of 11822911 is about 3438.4460152807. The cubic root of 11822911 is about 227.8110610275.

The spelling of 11822911 in words is "eleven million, eight hundred twenty-two thousand, nine hundred eleven".