231433712 has 20 divisors (see below), whose sum is σ = 448731696. Its totient is φ = 115632000.

The previous prime is 231433711. The next prime is 231433753. The reversal of 231433712 is 217334132.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231433711) 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, 21212 + ... + 30212.

Almost surely, 2^231433712 is an apocalyptic number.

It is an amenable number.

231433712 is a deficient number, since it is larger than the sum of its proper divisors (217297984).

231433712 is a wasteful number, since it uses less digits than its factorization.

231433712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10616 (or 10610 counting only the distinct ones).

The product of its digits is 3024, while the sum is 26.

The square root of 231433712 is about 15212.9455399012. The cubic root of 231433712 is about 613.9630106418.

Adding to 231433712 its reverse (217334132), we get a palindrome (448767844).

The spelling of 231433712 in words is "two hundred thirty-one million, four hundred thirty-three thousand, seven hundred twelve".