10001003321 has 4 divisors (see below), whose sum is σ = 10589297652. Its totient is φ = 9412708992.

The previous prime is 10001003303. The next prime is 10001003401. The reversal of 10001003321 is 12330010001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12330010001 = 137 ⋅90000073.

It can be written as a sum of positive squares in 2 ways, for example, as 9012844096 + 988159225 = 94936^2 + 31435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001003321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001003021) 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, 294147140 + ... + 294147173.

It is an arithmetic number, because the mean of its divisors is an integer number (2647324413).

Almost surely, 2^10001003321 is an apocalyptic number.

It is an amenable number.

10001003321 is a deficient number, since it is larger than the sum of its proper divisors (588294331).

10001003321 is an equidigital number, since it uses as much as digits as its factorization.

10001003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588294330.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 10001003321 its reverse (12330010001), we get a palindrome (22331013322).

The spelling of 10001003321 in words is "ten billion, one million, three thousand, three hundred twenty-one".