231241223 has 4 divisors (see below), whose sum is σ = 232251240. Its totient is φ = 230231208.

The previous prime is 231241207. The next prime is 231241247. The reversal of 231241223 is 322142132.

231241223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231241223 - 2⁴ = 231241207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231241195 and 231241204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231241523) 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, 504665 + ... + 505122.

It is an arithmetic number, because the mean of its divisors is an integer number (58062810).

Almost surely, 2^231241223 is an apocalyptic number.

231241223 is a deficient number, since it is larger than the sum of its proper divisors (1010017).

231241223 is a wasteful number, since it uses less digits than its factorization.

231241223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010016.

The product of its digits is 576, while the sum is 20.

The square root of 231241223 is about 15206.6177370249. The cubic root of 231241223 is about 613.7927474813.

Adding to 231241223 its reverse (322142132), we get a palindrome (553383355).

Subtracting 231241223 from its reverse (322142132), we obtain a palindrome (90900909).

The spelling of 231241223 in words is "two hundred thirty-one million, two hundred forty-one thousand, two hundred twenty-three".