231133223 has 8 divisors (see below), whose sum is σ = 234700800. Its totient is φ = 227581848.

The previous prime is 231133211. The next prime is 231133237. The reversal of 231133223 is 322331132.

231133223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 231133223 - 2¹⁴ = 231116839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231133195 and 231133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231133283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26438 + ... + 34076.

It is an arithmetic number, because the mean of its divisors is an integer number (29337600).

Almost surely, 2^231133223 is an apocalyptic number.

231133223 is a deficient number, since it is larger than the sum of its proper divisors (3567577).

231133223 is an equidigital number, since it uses as much as digits as its factorization.

231133223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8101.

The product of its digits is 648, while the sum is 20.

The square root of 231133223 is about 15203.0662367826. The cubic root of 231133223 is about 613.6971763736.

Adding to 231133223 its reverse (322331132), we get a palindrome (553464355).

The spelling of 231133223 in words is "two hundred thirty-one million, one hundred thirty-three thousand, two hundred twenty-three".