133333133312 has 48 divisors (see below), whose sum is σ = 267997766400. Its totient is φ = 66317332480.

The previous prime is 133333133309. The next prime is 133333133317. The reversal of 133333133312 is 213331333331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (133333133317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220739 + ... + 561597.

It is an arithmetic number, because the mean of its divisors is an integer number (5583286800).

Almost surely, 2^133333133312 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 133333133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133998883200).

133333133312 is an abundant number, since it is smaller than the sum of its proper divisors (134664633088).

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

133333133312 is an equidigital number, since it uses as much as digits as its factorization.

133333133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341072 (or 341052 counting only the distinct ones).

The product of its digits is 13122, while the sum is 29.

Adding to 133333133312 its reverse (213331333331), we get a palindrome (346664466643).

The spelling of 133333133312 in words is "one hundred thirty-three billion, three hundred thirty-three million, one hundred thirty-three thousand, three hundred twelve".