133131033012 has 96 divisors (see below), whose sum is σ = 344305188864. Its totient is φ = 39849868800.

The previous prime is 133131033001. The next prime is 133131033019. The reversal of 133131033012 is 210330131331.

It is a self number, because there is not a number n which added to its sum of digits gives 133131033012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133131033019) 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, 300753 + ... + 597255.

It is an arithmetic number, because the mean of its divisors is an integer number (3586512384).

Almost surely, 2^133131033012 is an apocalyptic number.

133131033012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133131033012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172152594432).

133131033012 is an abundant number, since it is smaller than the sum of its proper divisors (211174155852).

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

133131033012 is a wasteful number, since it uses less digits than its factorization.

133131033012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296629 (or 296627 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 133131033012 its reverse (210330131331), we get a palindrome (343461164343).

The spelling of 133131033012 in words is "one hundred thirty-three billion, one hundred thirty-one million, thirty-three thousand, twelve".