2001032443 has 4 divisors (see below), whose sum is σ = 2106349960. Its totient is φ = 1895714928.

The previous prime is 2001032431. The next prime is 2001032459. The reversal of 2001032443 is 3442301002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001032443 - 2¹³ = 2001024251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 105317497 = 2001032443 / (2 + 0 + 0 + 1 + 0 + 3 + 2 + 4 + 4 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001032443.

It is not an unprimeable number, because it can be changed into a prime (2001030443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52658730 + ... + 52658767.

It is an arithmetic number, because the mean of its divisors is an integer number (526587490).

Almost surely, 2^2001032443 is an apocalyptic number.

2001032443 is a deficient number, since it is larger than the sum of its proper divisors (105317517).

2001032443 is a wasteful number, since it uses less digits than its factorization.

2001032443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105317516.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2001032443 is about 44732.9011243402. The cubic root of 2001032443 is about 1260.1378120448.

Adding to 2001032443 its reverse (3442301002), we get a palindrome (5443333445).

The spelling of 2001032443 in words is "two billion, one million, thirty-two thousand, four hundred forty-three".