23112566 has 4 divisors (see below), whose sum is σ = 34668852. Its totient is φ = 11556282.

The previous prime is 23112563. The next prime is 23112581. The reversal of 23112566 is 66521132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112563) 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 as a sum of consecutive naturals, namely, 5778140 + ... + 5778143.

It is an arithmetic number, because the mean of its divisors is an integer number (8667213).

Almost surely, 2^23112566 is an apocalyptic number.

23112566 is a deficient number, since it is larger than the sum of its proper divisors (11556286).

23112566 is a wasteful number, since it uses less digits than its factorization.

23112566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11556285.

The product of its digits is 2160, while the sum is 26.

The square root of 23112566 is about 4807.5530158283. The cubic root of 23112566 is about 284.8498891451.

Adding to 23112566 its reverse (66521132), we get a palindrome (89633698).

The spelling of 23112566 in words is "twenty-three million, one hundred twelve thousand, five hundred sixty-six".