133305231246 has 48 divisors (see below), whose sum is σ = 293317189200. Its totient is φ = 40358855680.

The previous prime is 133305231229. The next prime is 133305231253. The reversal of 133305231246 is 642132503331.

133305231246 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 722350 + ... + 887918.

It is an arithmetic number, because the mean of its divisors is an integer number (6110774775).

Almost surely, 2^133305231246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133305231246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146658594600).

133305231246 is an abundant number, since it is smaller than the sum of its proper divisors (160011957954).

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

133305231246 is a wasteful number, since it uses less digits than its factorization.

133305231246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166705 (or 166694 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 133305231246 its reverse (642132503331), we get a palindrome (775437734577).

The spelling of 133305231246 in words is "one hundred thirty-three billion, three hundred five million, two hundred thirty-one thousand, two hundred forty-six".