133113311440 has 80 divisors (see below), whose sum is σ = 339941635200. Its totient is φ = 48249755136.

The previous prime is 133113311407. The next prime is 133113311561. The reversal of 133113311440 is 44113311331.

133113311440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 1868835 + ... + 1938754.

It is an arithmetic number, because the mean of its divisors is an integer number (4249270440).

Almost surely, 2^133113311440 is an apocalyptic number.

133113311440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133113311440 is an abundant number, since it is smaller than the sum of its proper divisors (206828323760).

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

133113311440 is a wasteful number, since it uses less digits than its factorization.

133113311440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807644 (or 3807638 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 133113311440 its reverse (44113311331), we get a palindrome (177226622771).

The spelling of 133113311440 in words is "one hundred thirty-three billion, one hundred thirteen million, three hundred eleven thousand, four hundred forty".