23638123 has 2 divisors, whose sum is σ = 23638124. Its totient is φ = 23638122.

The previous prime is 23638093. The next prime is 23638163. The reversal of 23638123 is 32183632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23638123 - 2⁵ = 23638091 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23638091 and 23638100.

It is not a weakly prime, because it can be changed into another prime (23638163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11819061 + 11819062.

It is an arithmetic number, because the mean of its divisors is an integer number (11819062).

Almost surely, 2^23638123 is an apocalyptic number.

23638123 is a deficient number, since it is larger than the sum of its proper divisors (1).

23638123 is an equidigital number, since it uses as much as digits as its factorization.

23638123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 23638123 is about 4861.9052849680. The cubic root of 23638123 is about 286.9927964619.

The spelling of 23638123 in words is "twenty-three million, six hundred thirty-eight thousand, one hundred twenty-three".