12423109 has 2 divisors, whose sum is σ = 12423110. Its totient is φ = 12423108.

The previous prime is 12423097. The next prime is 12423113. The reversal of 12423109 is 90132421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12271009 + 152100 = 3503^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 12423109 - 2¹¹ = 12421061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12423109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12423119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211554 + 6211555.

It is an arithmetic number, because the mean of its divisors is an integer number (6211555).

Almost surely, 2^12423109 is an apocalyptic number.

It is an amenable number.

12423109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12423109 is an equidigital number, since it uses as much as digits as its factorization.

12423109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12423109 is about 3524.6431024999. The cubic root of 12423109 is about 231.6026007366.

The spelling of 12423109 in words is "twelve million, four hundred twenty-three thousand, one hundred nine".