23112231 has 8 divisors (see below), whose sum is σ = 32629104. Its totient is φ = 14501760.

The previous prime is 23112209. The next prime is 23112239. The reversal of 23112231 is 13221132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23112231 - 2⁹ = 23111719 is a prime.

It is a super-2 number, since 2×23112231² = 1068350443594722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23112231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226540 + ... + 226641.

It is an arithmetic number, because the mean of its divisors is an integer number (4078638).

Almost surely, 2^23112231 is an apocalyptic number.

23112231 is a deficient number, since it is larger than the sum of its proper divisors (9516873).

23112231 is a wasteful number, since it uses less digits than its factorization.

23112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453201.

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

The square root of 23112231 is about 4807.5181746926. The cubic root of 23112231 is about 284.8485129071.

Adding to 23112231 its reverse (13221132), we get a palindrome (36333363).

The spelling of 23112231 in words is "twenty-three million, one hundred twelve thousand, two hundred thirty-one".