2112727309 has 16 divisors (see below), whose sum is σ = 2788995456. Its totient is φ = 1549440000.

The previous prime is 2112727297. The next prime is 2112727313. The reversal of 2112727309 is 9037272112.

It is a cyclic number.

It is not a de Polignac number, because 2112727309 - 2¹¹ = 2112725261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112727319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805692 + ... + 808309.

It is an arithmetic number, because the mean of its divisors is an integer number (174312216).

Almost surely, 2^2112727309 is an apocalyptic number.

It is an amenable number.

2112727309 is a deficient number, since it is larger than the sum of its proper divisors (676268147).

2112727309 is a wasteful number, since it uses less digits than its factorization.

2112727309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614036.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 2112727309 is about 45964.4135065379. The cubic root of 2112727309 is about 1283.1609921528.

The spelling of 2112727309 in words is "two billion, one hundred twelve million, seven hundred twenty-seven thousand, three hundred nine".