100303321021 has 4 divisors (see below), whose sum is σ = 105582443200. Its totient is φ = 95024198844.

The previous prime is 100303320977. The next prime is 100303321033. The reversal of 100303321021 is 120123303001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100303321021 - 2⁷ = 100303320893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100303320986 and 100303321004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100303325021) 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 3 ways as a sum of consecutive naturals, for example, 2639561061 + ... + 2639561098.

It is an arithmetic number, because the mean of its divisors is an integer number (26395610800).

Almost surely, 2^100303321021 is an apocalyptic number.

It is an amenable number.

100303321021 is a deficient number, since it is larger than the sum of its proper divisors (5279122179).

100303321021 is an equidigital number, since it uses as much as digits as its factorization.

100303321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279122178.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 100303321021 its reverse (120123303001), we get a palindrome (220426624022).

The spelling of 100303321021 in words is "one hundred billion, three hundred three million, three hundred twenty-one thousand, twenty-one".