1123443133 has 2 divisors, whose sum is σ = 1123443134. Its totient is φ = 1123443132.

The previous prime is 1123443103. The next prime is 1123443149. The reversal of 1123443133 is 3313443211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 845820889 + 277622244 = 29083^2 + 16662^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123443133 - 2²⁹ = 586572221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123443098 and 1123443107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123443103) 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, 561721566 + 561721567.

It is an arithmetic number, because the mean of its divisors is an integer number (561721567).

Almost surely, 2^1123443133 is an apocalyptic number.

It is an amenable number.

1123443133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123443133 is an equidigital number, since it uses as much as digits as its factorization.

1123443133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

The square root of 1123443133 is about 33517.8032245552. The cubic root of 1123443133 is about 1039.5619250265.

Adding to 1123443133 its reverse (3313443211), we get a palindrome (4436886344).

The spelling of 1123443133 in words is "one billion, one hundred twenty-three million, four hundred forty-three thousand, one hundred thirty-three".