12120102109 has 8 divisors (see below), whose sum is σ = 12774608000. Its totient is φ = 11467256832.

The previous prime is 12120102101. The next prime is 12120102131. The reversal of 12120102109 is 90120102121.

It is a happy number.

12120102109 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 12120102109 - 2³ = 12120102101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120102101) 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, 400149 + ... + 429370.

It is an arithmetic number, because the mean of its divisors is an integer number (1596826000).

Almost surely, 2^12120102109 is an apocalyptic number.

12120102109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12120102109 is a deficient number, since it is larger than the sum of its proper divisors (654505891).

12120102109 is an equidigital number, since it uses as much as digits as its factorization.

12120102109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830307.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 12120102109 in words is "twelve billion, one hundred twenty million, one hundred two thousand, one hundred nine".