231223210 has 16 divisors (see below), whose sum is σ = 416793600. Its totient is φ = 92357776.

The previous prime is 231223207. The next prime is 231223211. The reversal of 231223210 is 12322132.

It is not an unprimeable number, because it can be changed into a prime (231223211) 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, 8890 + ... + 23269.

It is an arithmetic number, because the mean of its divisors is an integer number (26049600).

Almost surely, 2^231223210 is an apocalyptic number.

231223210 is a deficient number, since it is larger than the sum of its proper divisors (185570390).

231223210 is a wasteful number, since it uses less digits than its factorization.

231223210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32885.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231223210 is about 15206.0254504588. The cubic root of 231223210 is about 613.7768095274.

Adding to 231223210 its reverse (12322132), we get a palindrome (243545342).

The spelling of 231223210 in words is "two hundred thirty-one million, two hundred twenty-three thousand, two hundred ten".