2001443133240 has 96 divisors (see below), whose sum is σ = 6507845622720. Its totient is φ = 533459261184.

The previous prime is 2001443133233. The next prime is 2001443133251. The reversal of 2001443133240 is 423313441002.

2001443133240 is a `hidden beast` number, since 20 + 0 + 1 + 4 + 4 + 313 + 324 + 0 = 666.

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, 604767 + ... + 2090126.

It is an arithmetic number, because the mean of its divisors is an integer number (67790058570).

Almost surely, 2^{2001443133240} is an apocalyptic number.

2001443133240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001443133240 is an abundant number, since it is smaller than the sum of its proper divisors (4506402489480).

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

2001443133240 is a wasteful number, since it uses less digits than its factorization.

2001443133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696973 (or 2696966 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 2001443133240 its reverse (423313441002), we get a palindrome (2424756574242).

The spelling of 2001443133240 in words is "two trillion, one billion, four hundred forty-three million, one hundred thirty-three thousand, two hundred forty".