23133133212 has 96 divisors (see below), whose sum is σ = 62812646400. Its totient is φ = 6489400320.

The previous prime is 23133133169. The next prime is 23133133237. The reversal of 23133133212 is 21233133132.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3065508 + ... + 3073044.

It is an arithmetic number, because the mean of its divisors is an integer number (654298400).

Almost surely, 2^23133133212 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 23133133212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31406323200).

23133133212 is an abundant number, since it is smaller than the sum of its proper divisors (39679513188).

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

23133133212 is a wasteful number, since it uses less digits than its factorization.

23133133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211 (or 8209 counting only the distinct ones).

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

Adding to 23133133212 its reverse (21233133132), we get a palindrome (44366266344).

The spelling of 23133133212 in words is "twenty-three billion, one hundred thirty-three million, one hundred thirty-three thousand, two hundred twelve".