231023212 has 24 divisors (see below), whose sum is σ = 462479360. Its totient is φ = 98917200.

The previous prime is 231023209. The next prime is 231023249. The reversal of 231023212 is 212320132.

231023212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32587 + ... + 39037.

Almost surely, 2^231023212 is an apocalyptic number.

It is an amenable number.

231023212 is an abundant number, since it is smaller than the sum of its proper divisors (231456148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231023212 is a wasteful number, since it uses less digits than its factorization.

231023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7741 (or 7739 counting only the distinct ones).

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

The square root of 231023212 is about 15199.4477531258. The cubic root of 231023212 is about 613.5997950836.

Adding to 231023212 its reverse (212320132), we get a palindrome (443343344).

The spelling of 231023212 in words is "two hundred thirty-one million, twenty-three thousand, two hundred twelve".