233123212 has 48 divisors (see below), whose sum is σ = 485593920. Its totient is φ = 95846400.

The previous prime is 233123207. The next prime is 233123221. The reversal of 233123212 is 212321332.

It is a self number, because there is not a number n which added to its sum of digits gives 233123212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68364 + ... + 71692.

It is an arithmetic number, because the mean of its divisors is an integer number (10116540).

Almost surely, 2^233123212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233123212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242796960).

233123212 is an abundant number, since it is smaller than the sum of its proper divisors (252470708).

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

233123212 is a wasteful number, since it uses less digits than its factorization.

233123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442 (or 3440 counting only the distinct ones).

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

The square root of 233123212 is about 15268.3729323068. The cubic root of 233123212 is about 615.4533964643.

Adding to 233123212 its reverse (212321332), we get a palindrome (445444544).

The spelling of 233123212 in words is "two hundred thirty-three million, one hundred twenty-three thousand, two hundred twelve".