11109443 has 2 divisors, whose sum is σ = 11109444. Its totient is φ = 11109442.

The previous prime is 11109419. The next prime is 11109473. The reversal of 11109443 is 34490111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11109443 - 2⁶ = 11109379 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (11109403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5554721 + 5554722.

It is an arithmetic number, because the mean of its divisors is an integer number (5554722).

Almost surely, 2^11109443 is an apocalyptic number.

11109443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11109443 is an equidigital number, since it uses as much as digits as its factorization.

11109443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11109443 is about 3333.0831072747. The cubic root of 11109443 is about 223.1331492498.

Adding to 11109443 its reverse (34490111), we get a palindrome (45599554).

The spelling of 11109443 in words is "eleven million, one hundred nine thousand, four hundred forty-three".