11211230233 has 6 divisors (see below), whose sum is σ = 13041635226. Its totient is φ = 9609625872.

The previous prime is 11211230213. The next prime is 11211230243. The reversal of 11211230233 is 33203211211.

11211230233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10472042889 + 739187344 = 102333^2 + 27188^2 .

It is not a de Polignac number, because 11211230233 - 2⁵ = 11211230201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211230233.

It is not an unprimeable number, because it can be changed into a prime (11211230203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114400260 + ... + 114400357.

It is an arithmetic number, because the mean of its divisors is an integer number (2173605871).

Almost surely, 2^11211230233 is an apocalyptic number.

It is an amenable number.

11211230233 is a deficient number, since it is larger than the sum of its proper divisors (1830404993).

11211230233 is an equidigital number, since it uses as much as digits as its factorization.

11211230233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228800631 (or 228800624 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11211230233 its reverse (33203211211), we get a palindrome (44414441444).

The spelling of 11211230233 in words is "eleven billion, two hundred eleven million, two hundred thirty thousand, two hundred thirty-three".