33123133212 has 24 divisors (see below), whose sum is σ = 83232488976. Its totient is φ = 10191733248.

The previous prime is 33123133207. The next prime is 33123133231. The reversal of 33123133212 is 21233132133.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106163733 + ... + 106164044.

It is an arithmetic number, because the mean of its divisors is an integer number (3468020374).

Almost surely, 2^33123133212 is an apocalyptic number.

It is an amenable number.

33123133212 is an abundant number, since it is smaller than the sum of its proper divisors (50109355764).

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

33123133212 is a wasteful number, since it uses less digits than its factorization.

33123133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212327797 (or 212327795 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 33123133212 its reverse (21233132133), we get a palindrome (54356265345).

The spelling of 33123133212 in words is "thirty-three billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred twelve".