133401442412 has 96 divisors (see below), whose sum is σ = 287278279680. Its totient is φ = 52933720320.

The previous prime is 133401442333. The next prime is 133401442417. The reversal of 133401442412 is 214244104331.

It is not an unprimeable number, because it can be changed into a prime (133401442417) 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, 5081873 + ... + 5108055.

It is an arithmetic number, because the mean of its divisors is an integer number (2992482080).

Almost surely, 2^133401442412 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 133401442412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143639139840).

133401442412 is an abundant number, since it is smaller than the sum of its proper divisors (153876837268).

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

133401442412 is a wasteful number, since it uses less digits than its factorization.

133401442412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26431 (or 26429 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 133401442412 its reverse (214244104331), we get a palindrome (347645546743).

The spelling of 133401442412 in words is "one hundred thirty-three billion, four hundred one million, four hundred forty-two thousand, four hundred twelve".