1123204133 has 16 divisors (see below), whose sum is σ = 1235260800. Its totient is φ = 1017172800.

The previous prime is 1123204123. The next prime is 1123204141. The reversal of 1123204133 is 3314023211.

It is a cyclic number.

It is not a de Polignac number, because 1123204133 - 2²⁶ = 1056095269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123204123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45560 + ... + 65742.

It is an arithmetic number, because the mean of its divisors is an integer number (77203800).

Almost surely, 2^1123204133 is an apocalyptic number.

It is an amenable number.

1123204133 is a deficient number, since it is larger than the sum of its proper divisors (112056667).

1123204133 is a wasteful number, since it uses less digits than its factorization.

1123204133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20332.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1123204133 is about 33514.2377654632. The cubic root of 1123204133 is about 1039.4882013955.

Adding to 1123204133 its reverse (3314023211), we get a palindrome (4437227344).

The spelling of 1123204133 in words is "one billion, one hundred twenty-three million, two hundred four thousand, one hundred thirty-three".