12031210009 has 8 divisors (see below), whose sum is σ = 14807643200. Its totient is φ = 9519199056.

The previous prime is 12031209989. The next prime is 12031210013. The reversal of 12031210009 is 90001213021.

12031210009 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 12031210009 - 2¹⁷ = 12031078937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12031210099) 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 7 ways as a sum of consecutive naturals, for example, 66105459 + ... + 66105640.

It is an arithmetic number, because the mean of its divisors is an integer number (1850955400).

Almost surely, 2^12031210009 is an apocalyptic number.

It is an amenable number.

12031210009 is a deficient number, since it is larger than the sum of its proper divisors (2776433191).

12031210009 is a wasteful number, since it uses less digits than its factorization.

12031210009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132211119.

The product of its (nonzero) digits is 108, while the sum is 19.

It can be divided in two parts, 120312 and 10009, that added together give a 4-th power (130321 = 19⁴).

The spelling of 12031210009 in words is "twelve billion, thirty-one million, two hundred ten thousand, nine".