233212312 has 16 divisors (see below), whose sum is σ = 437595840. Its totient is φ = 116520096.

The previous prime is 233212303. The next prime is 233212313. The reversal of 233212312 is 213212332.

233212312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 233212312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233212313) 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, 1593 + ... + 21655.

It is an arithmetic number, because the mean of its divisors is an integer number (27349740).

Almost surely, 2^233212312 is an apocalyptic number.

It is an amenable number.

233212312 is a deficient number, since it is larger than the sum of its proper divisors (204383528).

233212312 is a wasteful number, since it uses less digits than its factorization.

233212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21522 (or 21518 counting only the distinct ones).

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

The square root of 233212312 is about 15271.2904497295. The cubic root of 233212312 is about 615.5317955112.

Adding to 233212312 its reverse (213212332), we get a palindrome (446424644).

The spelling of 233212312 in words is "two hundred thirty-three million, two hundred twelve thousand, three hundred twelve".