233231212 has 6 divisors (see below), whose sum is σ = 408154628. Its totient is φ = 116615604.

The previous prime is 233231179. The next prime is 233231263. The reversal of 233231212 is 212132332.

It is a self number, because there is not a number n which added to its sum of digits gives 233231212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29153898 + ... + 29153905.

Almost surely, 2^233231212 is an apocalyptic number.

It is an amenable number.

233231212 is a deficient number, since it is larger than the sum of its proper divisors (174923416).

233231212 is a wasteful number, since it uses less digits than its factorization.

233231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58307807 (or 58307805 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 233231212 is about 15271.9092454087. The cubic root of 233231212 is about 615.5484230448.

Adding to 233231212 its reverse (212132332), we get a palindrome (445363544).

The spelling of 233231212 in words is "two hundred thirty-three million, two hundred thirty-one thousand, two hundred twelve".