133312011303212 has 96 divisors (see below), whose sum is σ = 284385869042688. Its totient is φ = 53377135478784.

The previous prime is 133312011303179. The next prime is 133312011303217. The reversal of 133312011303212 is 212303110213331.

It is not an unprimeable number, because it can be changed into a prime (133312011303217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1256386553 + ... + 1256492655.

It is an arithmetic number, because the mean of its divisors is an integer number (2962352802528).

Almost surely, 2^{133312011303212} 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 133312011303212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142192934521344).

133312011303212 is an abundant number, since it is smaller than the sum of its proper divisors (151073857739476).

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

133312011303212 is a wasteful number, since it uses less digits than its factorization.

133312011303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125535 (or 125533 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 133312011303212 its reverse (212303110213331), we get a palindrome (345615121516543).

The spelling of 133312011303212 in words is "one hundred thirty-three trillion, three hundred twelve billion, eleven million, three hundred three thousand, two hundred twelve".