11203243 has 2 divisors, whose sum is σ = 11203244. Its totient is φ = 11203242.

The previous prime is 11203219. The next prime is 11203253. The reversal of 11203243 is 34230211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11203243 is a prime.

It is not a weakly prime, because it can be changed into another prime (11203253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601621 + 5601622.

It is an arithmetic number, because the mean of its divisors is an integer number (5601622).

Almost surely, 2^11203243 is an apocalyptic number.

11203243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11203243 is an equidigital number, since it uses as much as digits as its factorization.

11203243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 11203243 is about 3347.1245868656. The cubic root of 11203243 is about 223.7593810242.

Adding to 11203243 its reverse (34230211), we get a palindrome (45433454).

The spelling of 11203243 in words is "eleven million, two hundred three thousand, two hundred forty-three".