231323210 has 16 divisors (see below), whose sum is σ = 416605896. Its totient is φ = 92479488.

The previous prime is 231323201. The next prime is 231323219. The reversal of 231323210 is 12323132.

231323210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231323201) and next prime (231323219).

It can be written as a sum of positive squares in 4 ways, for example, as 225510289 + 5812921 = 15017^2 + 2411^2 .

It is not an unprimeable number, because it can be changed into a prime (231323219) 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, 17642 + ... + 27818.

Almost surely, 2^231323210 is an apocalyptic number.

231323210 is a deficient number, since it is larger than the sum of its proper divisors (185282686).

231323210 is a wasteful number, since it uses less digits than its factorization.

231323210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12457.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231323210 is about 15209.3132652332. The cubic root of 231323210 is about 613.8652793582.

Adding to 231323210 its reverse (12323132), we get a palindrome (243646342).

The spelling of 231323210 in words is "two hundred thirty-one million, three hundred twenty-three thousand, two hundred ten".