2001040033443 has 16 divisors (see below), whose sum is σ = 3063793353600. Its totient is φ = 1148922506880.

The previous prime is 2001040033387. The next prime is 2001040033477. The reversal of 2001040033443 is 3443300401002.

It is not a de Polignac number, because 2001040033443 - 2⁶ = 2001040033379 is a prime.

It is a super-2 number, since 2×2001040033443² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2001040033043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1595725078 + ... + 1595726331.

It is an arithmetic number, because the mean of its divisors is an integer number (191487084600).

Almost surely, 2^{2001040033443} is an apocalyptic number.

2001040033443 is a deficient number, since it is larger than the sum of its proper divisors (1062753320157).

2001040033443 is a wasteful number, since it uses less digits than its factorization.

2001040033443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191451442.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 2001040033443 its reverse (3443300401002), we get a palindrome (5444340434445).

The spelling of 2001040033443 in words is "two trillion, one billion, forty million, thirty-three thousand, four hundred forty-three".