12009093009 has 4 divisors (see below), whose sum is σ = 16012124016. Its totient is φ = 8006062004.

The previous prime is 12009093001. The next prime is 12009093049. The reversal of 12009093009 is 90039090021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90039090021 = 3 ⋅30013030007.

It is a cyclic number.

It is not a de Polignac number, because 12009093009 - 2³ = 12009093001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12009093001) 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, 2001515499 + ... + 2001515504.

It is an arithmetic number, because the mean of its divisors is an integer number (4003031004).

Almost surely, 2^12009093009 is an apocalyptic number.

It is an amenable number.

12009093009 is a deficient number, since it is larger than the sum of its proper divisors (4003031007).

12009093009 is an equidigital number, since it uses as much as digits as its factorization.

12009093009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003031006.

The product of its (nonzero) digits is 4374, while the sum is 33.

The spelling of 12009093009 in words is "twelve billion, nine million, ninety-three thousand, nine".