11138243 has 2 divisors, whose sum is σ = 11138244. Its totient is φ = 11138242.

The previous prime is 11138203. The next prime is 11138251. The reversal of 11138243 is 34283111.

It is a strong prime.

It is an emirp because it is prime and its reverse (34283111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11138243 - 2¹⁰ = 11137219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11138203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5569121 + 5569122.

It is an arithmetic number, because the mean of its divisors is an integer number (5569122).

Almost surely, 2^11138243 is an apocalyptic number.

11138243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11138243 is an equidigital number, since it uses as much as digits as its factorization.

11138243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 11138243 is about 3337.4006352250. The cubic root of 11138243 is about 223.3257988597.

The spelling of 11138243 in words is "eleven million, one hundred thirty-eight thousand, two hundred forty-three".