133305231248 has 160 divisors (see below), whose sum is σ = 308149920000. Its totient is φ = 54658695168.

The previous prime is 133305231229. The next prime is 133305231253. The reversal of 133305231248 is 842132503331.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267144503 + ... + 267145001.

It is an arithmetic number, because the mean of its divisors is an integer number (1925937000).

Almost surely, 2^133305231248 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 133305231248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154074960000).

133305231248 is an abundant number, since it is smaller than the sum of its proper divisors (174844688752).

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

133305231248 is a wasteful number, since it uses less digits than its factorization.

133305231248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 133305231248 its reverse (842132503331), we get a palindrome (975437734579).

The spelling of 133305231248 in words is "one hundred thirty-three billion, three hundred five million, two hundred thirty-one thousand, two hundred forty-eight".