11223123009 has 8 divisors (see below), whose sum is σ = 17101901760. Its totient is φ = 6413213136.

The previous prime is 11223123001. The next prime is 11223123011. The reversal of 11223123009 is 90032132211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11223123009 - 2³ = 11223123001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11223123009.

It is not an unprimeable number, because it can be changed into a prime (11223123001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267217194 + ... + 267217235.

It is an arithmetic number, because the mean of its divisors is an integer number (2137737720).

Almost surely, 2^11223123009 is an apocalyptic number.

It is an amenable number.

11223123009 is a deficient number, since it is larger than the sum of its proper divisors (5878778751).

11223123009 is an equidigital number, since it uses as much as digits as its factorization.

11223123009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534434439.

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 11223123009 in words is "eleven billion, two hundred twenty-three million, one hundred twenty-three thousand, nine".