10001021443 has 16 divisors (see below), whose sum is σ = 12111552000. Its totient is φ = 8061734016.

The previous prime is 10001021363. The next prime is 10001021453. The reversal of 10001021443 is 34412010001.

It is a de Polignac number, because none of the positive numbers 2^k-10001021443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001021453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122808 + ... + 187306.

It is an arithmetic number, because the mean of its divisors is an integer number (756972000).

Almost surely, 2^10001021443 is an apocalyptic number.

10001021443 is a deficient number, since it is larger than the sum of its proper divisors (2110530557).

10001021443 is a wasteful number, since it uses less digits than its factorization.

10001021443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65826.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10001021443 its reverse (34412010001), we get a palindrome (44413031444).

The spelling of 10001021443 in words is "ten billion, one million, twenty-one thousand, four hundred forty-three".