11123243 has 2 divisors, whose sum is σ = 11123244. Its totient is φ = 11123242.

The previous prime is 11123221. The next prime is 11123251. The reversal of 11123243 is 34232111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11123243 - 2⁶ = 11123179 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11123263) 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, 5561621 + 5561622.

It is an arithmetic number, because the mean of its divisors is an integer number (5561622).

Almost surely, 2^11123243 is an apocalyptic number.

11123243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123243 is an equidigital number, since it uses as much as digits as its factorization.

11123243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 11123243 is about 3335.1526201960. The cubic root of 11123243 is about 223.2255020150.

Adding to 11123243 its reverse (34232111), we get a palindrome (45355354).

The spelling of 11123243 in words is "eleven million, one hundred twenty-three thousand, two hundred forty-three".