231335212 has 6 divisors (see below), whose sum is σ = 404836628. Its totient is φ = 115667604.

The previous prime is 231335207. The next prime is 231335213. The reversal of 231335212 is 212533132.

It is a super-2 number, since 2×231335212² = 107031960622169888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231335213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28916898 + ... + 28916905.

Almost surely, 2^231335212 is an apocalyptic number.

It is an amenable number.

231335212 is a deficient number, since it is larger than the sum of its proper divisors (173501416).

231335212 is a wasteful number, since it uses less digits than its factorization.

231335212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57833807 (or 57833805 counting only the distinct ones).

The product of its digits is 1080, while the sum is 22.

The square root of 231335212 is about 15209.7078209938. The cubic root of 231335212 is about 613.8758957935.

Adding to 231335212 its reverse (212533132), we get a palindrome (443868344).

The spelling of 231335212 in words is "two hundred thirty-one million, three hundred thirty-five thousand, two hundred twelve".