1123242233 has 4 divisors (see below), whose sum is σ = 1123724388. Its totient is φ = 1122760080.

The previous prime is 1123242199. The next prime is 1123242257. The reversal of 1123242233 is 3322423211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 479960464 + 643281769 = 21908^2 + 25363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123242233 - 2¹⁰ = 1123241209 is a prime.

It is a super-2 number, since 2×1123242233² = 2523346227989652578, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1123242199 and 1123242208.

It is not an unprimeable number, because it can be changed into a prime (1123242733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237566 + ... + 242247.

It is an arithmetic number, because the mean of its divisors is an integer number (280931097).

Almost surely, 2^1123242233 is an apocalyptic number.

It is an amenable number.

1123242233 is a deficient number, since it is larger than the sum of its proper divisors (482155).

1123242233 is an equidigital number, since it uses as much as digits as its factorization.

1123242233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482154.

The product of its digits is 1728, while the sum is 23.

The square root of 1123242233 is about 33514.8061757785. The cubic root of 1123242233 is about 1039.4999546917.

Adding to 1123242233 its reverse (3322423211), we get a palindrome (4445665444).

The spelling of 1123242233 in words is "one billion, one hundred twenty-three million, two hundred forty-two thousand, two hundred thirty-three".