10021003873 has 4 divisors (see below), whose sum is σ = 10035138580. Its totient is φ = 10006869168.

The previous prime is 10021003841. The next prime is 10021003879. The reversal of 10021003873 is 37830012001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37830012001 = 563 ⋅67193627.

It can be written as a sum of positive squares in 2 ways, for example, as 446772769 + 9574231104 = 21137^2 + 97848^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021003873 - 2⁵ = 10021003841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021003879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7066290 + ... + 7067707.

It is an arithmetic number, because the mean of its divisors is an integer number (2508784645).

Almost surely, 2^10021003873 is an apocalyptic number.

It is an amenable number.

10021003873 is a deficient number, since it is larger than the sum of its proper divisors (14134707).

10021003873 is an equidigital number, since it uses as much as digits as its factorization.

10021003873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134706.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 10021003873 its reverse (37830012001), we get a palindrome (47851015874).

The spelling of 10021003873 in words is "ten billion, twenty-one million, three thousand, eight hundred seventy-three".