11043100243 has 4 divisors (see below), whose sum is σ = 12620686000. Its totient is φ = 9465514488.

The previous prime is 11043100217. The next prime is 11043100247. The reversal of 11043100243 is 34200134011.

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 11043100243 - 2⁹ = 11043099731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11043100243.

It is not an unprimeable number, because it can be changed into a prime (11043100247) 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, 788792868 + ... + 788792881.

It is an arithmetic number, because the mean of its divisors is an integer number (3155171500).

Almost surely, 2^11043100243 is an apocalyptic number.

11043100243 is a deficient number, since it is larger than the sum of its proper divisors (1577585757).

11043100243 is an equidigital number, since it uses as much as digits as its factorization.

11043100243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577585756.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11043100243 its reverse (34200134011), we get a palindrome (45243234254).

The spelling of 11043100243 in words is "eleven billion, forty-three million, one hundred thousand, two hundred forty-three".