133103220312 has 64 divisors (see below), whose sum is σ = 350785296000. Its totient is φ = 41970956544.

The previous prime is 133103220193. The next prime is 133103220319. The reversal of 133103220312 is 213022301331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133103220319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97764 + ... + 525132.

It is an arithmetic number, because the mean of its divisors is an integer number (5481020250).

Almost surely, 2^133103220312 is an apocalyptic number.

133103220312 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 133103220312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175392648000).

133103220312 is an abundant number, since it is smaller than the sum of its proper divisors (217682075688).

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

133103220312 is a wasteful number, since it uses less digits than its factorization.

133103220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428080 (or 428076 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 133103220312 its reverse (213022301331), we get a palindrome (346125521643).

The spelling of 133103220312 in words is "one hundred thirty-three billion, one hundred three million, two hundred twenty thousand, three hundred twelve".