23112223 has 4 divisors (see below), whose sum is σ = 23144488. Its totient is φ = 23079960.

The previous prime is 23112209. The next prime is 23112239. The reversal of 23112223 is 32221132.

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 23112223 - 2⁵ = 23112191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23112197 and 23112206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23110223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15033 + ... + 16498.

It is an arithmetic number, because the mean of its divisors is an integer number (5786122).

Almost surely, 2^23112223 is an apocalyptic number.

23112223 is a deficient number, since it is larger than the sum of its proper divisors (32265).

23112223 is an equidigital number, since it uses as much as digits as its factorization.

23112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32264.

The product of its digits is 144, while the sum is 16.

The square root of 23112223 is about 4807.5173426624. The cubic root of 23112223 is about 284.8484800416.

Adding to 23112223 its reverse (32221132), we get a palindrome (55333355).

The spelling of 23112223 in words is "twenty-three million, one hundred twelve thousand, two hundred twenty-three".