1123443443 has 2 divisors, whose sum is σ = 1123443444. Its totient is φ = 1123443442.

The previous prime is 1123443439. The next prime is 1123443463. The reversal of 1123443443 is 3443443211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123443443 - 2² = 1123443439 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123443403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561721721 + 561721722.

It is an arithmetic number, because the mean of its divisors is an integer number (561721722).

Almost surely, 2^1123443443 is an apocalyptic number.

1123443443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123443443 is an equidigital number, since it uses as much as digits as its factorization.

1123443443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 29.

The square root of 1123443443 is about 33517.8078489629. The cubic root of 1123443443 is about 1039.5620206445.

Adding to 1123443443 its reverse (3443443211), we get a palindrome (4566886654).

The spelling of 1123443443 in words is "one billion, one hundred twenty-three million, four hundred forty-three thousand, four hundred forty-three".