133031334612 has 96 divisors (see below), whose sum is σ = 351968408064. Its totient is φ = 38750313600.

The previous prime is 133031334559. The next prime is 133031334613. The reversal of 133031334612 is 216433130331.

It is a self number, because there is not a number n which added to its sum of digits gives 133031334612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031334613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241287 + ... + 569457.

It is an arithmetic number, because the mean of its divisors is an integer number (3666337584).

Almost surely, 2^133031334612 is an apocalyptic number.

133031334612 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 133031334612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175984204032).

133031334612 is an abundant number, since it is smaller than the sum of its proper divisors (218937073452).

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

133031334612 is a wasteful number, since it uses less digits than its factorization.

133031334612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328309 (or 328307 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 133031334612 its reverse (216433130331), we get a palindrome (349464464943).

The spelling of 133031334612 in words is "one hundred thirty-three billion, thirty-one million, three hundred thirty-four thousand, six hundred twelve".