11123001233 has 4 divisors (see below), whose sum is σ = 11394293988. Its totient is φ = 10851708480.

The previous prime is 11123001199. The next prime is 11123001259. The reversal of 11123001233 is 33210032111.

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 2604265024 + 8518736209 = 51032^2 + 92297^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123001233 - 2¹⁶ = 11122935697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123006233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135646316 + ... + 135646397.

It is an arithmetic number, because the mean of its divisors is an integer number (2848573497).

Almost surely, 2^11123001233 is an apocalyptic number.

It is an amenable number.

11123001233 is a deficient number, since it is larger than the sum of its proper divisors (271292755).

11123001233 is an equidigital number, since it uses as much as digits as its factorization.

11123001233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271292754.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11123001233 its reverse (33210032111), we get a palindrome (44333033344).

The spelling of 11123001233 in words is "eleven billion, one hundred twenty-three million, one thousand, two hundred thirty-three".