11123321243 has 2 divisors, whose sum is σ = 11123321244. Its totient is φ = 11123321242.

The previous prime is 11123321239. The next prime is 11123321257. The reversal of 11123321243 is 34212332111.

It is a weak prime.

It is an emirp because it is prime and its reverse (34212332111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11123321243 - 2² = 11123321239 is a prime.

It is not a weakly prime, because it can be changed into another prime (11123321273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561660621 + 5561660622.

It is an arithmetic number, because the mean of its divisors is an integer number (5561660622).

Almost surely, 2^11123321243 is an apocalyptic number.

11123321243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123321243 is an equidigital number, since it uses as much as digits as its factorization.

11123321243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

Adding to 11123321243 its reverse (34212332111), we get a palindrome (45335653354).

The spelling of 11123321243 in words is "eleven billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred forty-three".