1123203433 has 6 divisors (see below), whose sum is σ = 1234595642. Its totient is φ = 1021093920.

The previous prime is 1123203427. The next prime is 1123203443. The reversal of 1123203433 is 3343023211.

It can be written as a sum of positive squares in only one way, i.e., 998054464 + 125148969 = 31592^2 + 11187^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1123203433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123203443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4641216 + ... + 4641457.

Almost surely, 2^1123203433 is an apocalyptic number.

It is an amenable number.

1123203433 is a deficient number, since it is larger than the sum of its proper divisors (111392209).

1123203433 is an equidigital number, since it uses as much as digits as its factorization.

1123203433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9282695 (or 9282684 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1123203433 is about 33514.2273221389. The cubic root of 1123203433 is about 1039.4879854532.

Adding to 1123203433 its reverse (3343023211), we get a palindrome (4466226644).

The spelling of 1123203433 in words is "one billion, one hundred twenty-three million, two hundred three thousand, four hundred thirty-three".