23112123 has 4 divisors (see below), whose sum is σ = 30816168. Its totient is φ = 15408080.

The previous prime is 23112121. The next prime is 23112137. The reversal of 23112123 is 32121132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23112123 - 2¹ = 23112121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23112121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3852018 + ... + 3852023.

It is an arithmetic number, because the mean of its divisors is an integer number (7704042).

Almost surely, 2^23112123 is an apocalyptic number.

23112123 is a deficient number, since it is larger than the sum of its proper divisors (7704045).

23112123 is an equidigital number, since it uses as much as digits as its factorization.

23112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7704044.

The product of its digits is 72, while the sum is 15.

The square root of 23112123 is about 4807.5069422727. The cubic root of 23112123 is about 284.8480692216.

Adding to 23112123 its reverse (32121132), we get a palindrome (55233255).

Subtracting 23112123 from its reverse (32121132), we obtain a palindrome (9009009).

The spelling of 23112123 in words is "twenty-three million, one hundred twelve thousand, one hundred twenty-three".