12020120009 has 8 divisors (see below), whose sum is σ = 12210186240. Its totient is φ = 11831131216.

The previous prime is 12020119997. The next prime is 12020120023. The reversal of 12020120009 is 90002102021.

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 12020120009 - 2³² = 7725152713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020120069) 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, 246857 + ... + 291510.

It is an arithmetic number, because the mean of its divisors is an integer number (1526273280).

Almost surely, 2^12020120009 is an apocalyptic number.

It is an amenable number.

12020120009 is a deficient number, since it is larger than the sum of its proper divisors (190066231).

12020120009 is an equidigital number, since it uses as much as digits as its factorization.

12020120009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538719.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 12020120009 in words is "twelve billion, twenty million, one hundred twenty thousand, nine".