133200031312 has 40 divisors (see below), whose sum is σ = 267397885440. Its totient is φ = 64201415040.

The previous prime is 133200031277. The next prime is 133200031319. The reversal of 133200031312 is 213130002331.

It is a self number, because there is not a number n which added to its sum of digits gives 133200031312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133200031319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65313 + ... + 520255.

It is an arithmetic number, because the mean of its divisors is an integer number (6684947136).

Almost surely, 2^133200031312 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 133200031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133698942720).

133200031312 is an abundant number, since it is smaller than the sum of its proper divisors (134197854128).

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

133200031312 is a wasteful number, since it uses less digits than its factorization.

133200031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455611 (or 455605 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 133200031312 its reverse (213130002331), we get a palindrome (346330033643).

The spelling of 133200031312 in words is "one hundred thirty-three billion, two hundred million, thirty-one thousand, three hundred twelve".