133311881248 has 96 divisors (see below), whose sum is σ = 324700016256. Its totient is φ = 52465287168.

The previous prime is 133311881221. The next prime is 133311881309. The reversal of 133311881248 is 842188113331.

133311881248 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443415 + ... + 680617.

It is an arithmetic number, because the mean of its divisors is an integer number (3382291836).

Almost surely, 2^133311881248 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 133311881248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162350008128).

133311881248 is an abundant number, since it is smaller than the sum of its proper divisors (191388135008).

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

133311881248 is a wasteful number, since it uses less digits than its factorization.

133311881248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237426 (or 237418 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

Adding to 133311881248 its reverse (842188113331), we get a palindrome (975499994579).

The spelling of 133311881248 in words is "one hundred thirty-three billion, three hundred eleven million, eight hundred eighty-one thousand, two hundred forty-eight".