231323266 has 8 divisors (see below), whose sum is σ = 347851404. Its totient is φ = 115372800.

The previous prime is 231323231. The next prime is 231323269. The reversal of 231323266 is 662323132.

231323266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 130622041 + 100701225 = 11429^2 + 10035^2 .

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

It is not an unprimeable number, because it can be changed into a prime (231323269) 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, 143415 + ... + 145018.

Almost surely, 2^231323266 is an apocalyptic number.

231323266 is a deficient number, since it is larger than the sum of its proper divisors (116528138).

231323266 is a wasteful number, since it uses less digits than its factorization.

231323266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288836.

The product of its digits is 7776, while the sum is 28.

The square root of 231323266 is about 15209.3151062104. The cubic root of 231323266 is about 613.8653288942.

Adding to 231323266 its reverse (662323132), we get a palindrome (893646398).

The spelling of 231323266 in words is "two hundred thirty-one million, three hundred twenty-three thousand, two hundred sixty-six".