1100043223 has 2 divisors, whose sum is σ = 1100043224. Its totient is φ = 1100043222.

The previous prime is 1100043187. The next prime is 1100043227. The reversal of 1100043223 is 3223400011.

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-1100043223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100043197 and 1100043206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100043227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550021611 + 550021612.

It is an arithmetic number, because the mean of its divisors is an integer number (550021612).

Almost surely, 2^1100043223 is an apocalyptic number.

1100043223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100043223 is an equidigital number, since it uses as much as digits as its factorization.

1100043223 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1100043223 is about 33166.8995083954. The cubic root of 1100043223 is about 1032.2936359591.

Adding to 1100043223 its reverse (3223400011), we get a palindrome (4323443234).

The spelling of 1100043223 in words is "one billion, one hundred million, forty-three thousand, two hundred twenty-three".