2012230309 has 2 divisors, whose sum is σ = 2012230310. Its totient is φ = 2012230308.

The previous prime is 2012230289. The next prime is 2012230333. The reversal of 2012230309 is 9030322102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1317907809 + 694322500 = 36303^2 + 26350^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012230309 - 2¹¹ = 2012228261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2012230309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012230399) 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 as a sum of consecutive naturals, namely, 1006115154 + 1006115155.

It is an arithmetic number, because the mean of its divisors is an integer number (1006115155).

Almost surely, 2^2012230309 is an apocalyptic number.

It is an amenable number.

2012230309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012230309 is an equidigital number, since it uses as much as digits as its factorization.

2012230309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2012230309 is about 44857.8901532384. The cubic root of 2012230309 is about 1262.4840365789.

The spelling of 2012230309 in words is "two billion, twelve million, two hundred thirty thousand, three hundred nine".