11992233009 has 4 divisors (see below), whose sum is σ = 15989644016. Its totient is φ = 7994822004.

The previous prime is 11992232929. The next prime is 11992233013. The reversal of 11992233009 is 90033229911.

11992233009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 11992233009 - 2¹¹ = 11992230961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11992233509) 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 3 ways as a sum of consecutive naturals, for example, 1998705499 + ... + 1998705504.

It is an arithmetic number, because the mean of its divisors is an integer number (3997411004).

Almost surely, 2^11992233009 is an apocalyptic number.

It is an amenable number.

11992233009 is a deficient number, since it is larger than the sum of its proper divisors (3997411007).

11992233009 is an equidigital number, since it uses as much as digits as its factorization.

11992233009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997411006.

The product of its (nonzero) digits is 26244, while the sum is 39.

The spelling of 11992233009 in words is "eleven billion, nine hundred ninety-two million, two hundred thirty-three thousand, nine".