23428123 has 2 divisors, whose sum is σ = 23428124. Its totient is φ = 23428122.

The previous prime is 23428081. The next prime is 23428127. The reversal of 23428123 is 32182432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23428123 - 2⁹ = 23427611 is a prime.

It is not a weakly prime, because it can be changed into another prime (23428127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11714061 + 11714062.

It is an arithmetic number, because the mean of its divisors is an integer number (11714062).

Almost surely, 2^23428123 is an apocalyptic number.

23428123 is a deficient number, since it is larger than the sum of its proper divisors (1).

23428123 is an equidigital number, since it uses as much as digits as its factorization.

23428123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 23428123 is about 4840.2606334783. The cubic root of 23428123 is about 286.1403902658.

The spelling of 23428123 in words is "twenty-three million, four hundred twenty-eight thousand, one hundred twenty-three".