231004223 has 4 divisors (see below), whose sum is σ = 243162360. Its totient is φ = 218846088.

The previous prime is 231004181. The next prime is 231004229. The reversal of 231004223 is 322400132.

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 231004223 - 2¹⁴ = 230987839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231004229) 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, 6079040 + ... + 6079077.

It is an arithmetic number, because the mean of its divisors is an integer number (60790590).

Almost surely, 2^231004223 is an apocalyptic number.

231004223 is a deficient number, since it is larger than the sum of its proper divisors (12158137).

231004223 is a wasteful number, since it uses less digits than its factorization.

231004223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158136.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 231004223 is about 15198.8230794361. The cubic root of 231004223 is about 613.5829829696.

Adding to 231004223 its reverse (322400132), we get a palindrome (553404355).

The spelling of 231004223 in words is "two hundred thirty-one million, four thousand, two hundred twenty-three".