12130309 has 2 divisors, whose sum is σ = 12130310. Its totient is φ = 12130308.

The previous prime is 12130289. The next prime is 12130319. The reversal of 12130309 is 90303121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10099684 + 2030625 = 3178^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 12130309 - 2¹¹ = 12128261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12130319) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065154 + 6065155.

It is an arithmetic number, because the mean of its divisors is an integer number (6065155).

Almost surely, 2^12130309 is an apocalyptic number.

It is an amenable number.

12130309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12130309 is an equidigital number, since it uses as much as digits as its factorization.

12130309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 12130309 is about 3482.8593138397. The cubic root of 12130309 is about 229.7685699817.

It can be divided in two parts, 12 and 130309, that added together give a 4-th power (130321 = 19⁴).

The spelling of 12130309 in words is "twelve million, one hundred thirty thousand, three hundred nine".