1123100233 has 4 divisors (see below), whose sum is σ = 1123169040. Its totient is φ = 1123031428.

The previous prime is 1123100227. The next prime is 1123100239. The reversal of 1123100233 is 3320013211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3320013211 = 433 ⋅7667467.

It is an interprime number because it is at equal distance from previous prime (1123100227) and next prime (1123100239).

It is a cyclic number.

It is not a de Polignac number, because 1123100233 - 2⁵ = 1123100201 is a prime.

It is a super-2 number, since 2×1123100233² = 2522708266729308578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123100239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5538 + ... + 47716.

It is an arithmetic number, because the mean of its divisors is an integer number (280792260).

Almost surely, 2^1123100233 is an apocalyptic number.

It is an amenable number.

1123100233 is a deficient number, since it is larger than the sum of its proper divisors (68807).

1123100233 is an equidigital number, since it uses as much as digits as its factorization.

1123100233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68806.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1123100233 is about 33512.6876421453. The cubic root of 1123100233 is about 1039.4561484049.

Adding to 1123100233 its reverse (3320013211), we get a palindrome (4443113444).

The spelling of 1123100233 in words is "one billion, one hundred twenty-three million, one hundred thousand, two hundred thirty-three".