23040109 has 2 divisors, whose sum is σ = 23040110. Its totient is φ = 23040108.

The previous prime is 23040091. The next prime is 23040167. The reversal of 23040109 is 90104032.

Together with previous prime (23040091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23011209 + 28900 = 4797^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 23040109 - 2⁵ = 23040077 is a prime.

It is a Chen prime.

It is equal to p_1450630 and since 23040109 and 1450630 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23040209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11520054 + 11520055.

It is an arithmetic number, because the mean of its divisors is an integer number (11520055).

Almost surely, 2^23040109 is an apocalyptic number.

It is an amenable number.

23040109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040109 is an equidigital number, since it uses as much as digits as its factorization.

23040109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 23040109 is about 4800.0113541532. The cubic root of 23040109 is about 284.5519130869.

The spelling of 23040109 in words is "twenty-three million, forty thousand, one hundred nine".