11243520233 has 4 divisors (see below), whose sum is σ = 12265658448. Its totient is φ = 10221382020.

The previous prime is 11243520203. The next prime is 11243520247. The reversal of 11243520233 is 33202534211.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11243520233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11243520203) 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, 511069091 + ... + 511069112.

It is an arithmetic number, because the mean of its divisors is an integer number (3066414612).

Almost surely, 2^11243520233 is an apocalyptic number.

It is an amenable number.

11243520233 is a deficient number, since it is larger than the sum of its proper divisors (1022138215).

11243520233 is a wasteful number, since it uses less digits than its factorization.

11243520233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022138214.

The product of its (nonzero) digits is 4320, while the sum is 26.

The spelling of 11243520233 in words is "eleven billion, two hundred forty-three million, five hundred twenty thousand, two hundred thirty-three".