231244212 has 24 divisors (see below), whose sum is σ = 567968800. Its totient is φ = 73024416.

The previous prime is 231244207. The next prime is 231244243. The reversal of 231244212 is 212442132.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506887 + ... + 507342.

Almost surely, 2^231244212 is an apocalyptic number.

It is an amenable number.

231244212 is an abundant number, since it is smaller than the sum of its proper divisors (336724588).

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

231244212 is a wasteful number, since it uses less digits than its factorization.

231244212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014255 (or 1014253 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 231244212 is about 15206.7160162870. The cubic root of 231244212 is about 613.7953920770.

Adding to 231244212 its reverse (212442132), we get a palindrome (443686344).

The spelling of 231244212 in words is "two hundred thirty-one million, two hundred forty-four thousand, two hundred twelve".