23280109 has 2 divisors, whose sum is σ = 23280110. Its totient is φ = 23280108.

The previous prime is 23280083. The next prime is 23280113. The reversal of 23280109 is 90108232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11923209 + 11356900 = 3453^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 23280109 - 2⁵ = 23280077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23280139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11640054 + 11640055.

It is an arithmetic number, because the mean of its divisors is an integer number (11640055).

Almost surely, 2^23280109 is an apocalyptic number.

It is an amenable number.

23280109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23280109 is an equidigital number, since it uses as much as digits as its factorization.

23280109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 23280109 is about 4824.9465282011. The cubic root of 23280109 is about 285.5365249864.

The spelling of 23280109 in words is "twenty-three million, two hundred eighty thousand, one hundred nine".