12010109 has 16 divisors (see below), whose sum is σ = 13553280. Its totient is φ = 10604736.

The previous prime is 12010093. The next prime is 12010129. The reversal of 12010109 is 90101021.

It is not a de Polignac number, because 12010109 - 2⁴ = 12010093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010093 and 12010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116552 + ... + 116654.

It is an arithmetic number, because the mean of its divisors is an integer number (847080).

Almost surely, 2^12010109 is an apocalyptic number.

12010109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12010109 is a deficient number, since it is larger than the sum of its proper divisors (1543171).

12010109 is an equidigital number, since it uses as much as digits as its factorization.

12010109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 12010109 is about 3465.5604164406. The cubic root of 12010109 is about 229.0071188903.

The spelling of 12010109 in words is "twelve million, ten thousand, one hundred nine".