212023240009 has 8 divisors (see below), whose sum is σ = 242315618688. Its totient is φ = 181731697440.

The previous prime is 212023240001. The next prime is 212023240111. The reversal of 212023240009 is 900042320212.

212023240009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 212023240009 - 2³ = 212023240001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212023240001) 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 7 ways as a sum of consecutive naturals, for example, 490404 + ... + 815194.

It is an arithmetic number, because the mean of its divisors is an integer number (30289452336).

Almost surely, 2^212023240009 is an apocalyptic number.

It is an amenable number.

212023240009 is a deficient number, since it is larger than the sum of its proper divisors (30292378679).

212023240009 is an equidigital number, since it uses as much as digits as its factorization.

212023240009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418055.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 212023240009 in words is "two hundred twelve billion, twenty-three million, two hundred forty thousand, nine".