11003243 has 4 divisors (see below), whose sum is σ = 11112288. Its totient is φ = 10894200.

The previous prime is 11003197. The next prime is 11003249. The reversal of 11003243 is 34230011.

11003243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11003243 - 2¹⁰ = 11002219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11003249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54371 + ... + 54572.

It is an arithmetic number, because the mean of its divisors is an integer number (2778072).

Almost surely, 2^11003243 is an apocalyptic number.

11003243 is a deficient number, since it is larger than the sum of its proper divisors (109045).

11003243 is a wasteful number, since it uses less digits than its factorization.

11003243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109044.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 11003243 is about 3317.1136549717. The cubic root of 11003243 is about 222.4198625684.

Adding to 11003243 its reverse (34230011), we get a palindrome (45233254).

The spelling of 11003243 in words is "eleven million, three thousand, two hundred forty-three".