10003203209 has 4 divisors (see below), whose sum is σ = 10004388420. Its totient is φ = 10002018000.

The previous prime is 10003203193. The next prime is 10003203211. The reversal of 10003203209 is 90230230001.

10003203209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90230230001 = 89 ⋅1013822809.

It can be written as a sum of positive squares in 2 ways, for example, as 1077677584 + 8925525625 = 32828^2 + 94475^2 .

It is a cyclic number.

It is not a de Polignac number, because 10003203209 - 2⁴ = 10003203193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10006203209) 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, 579854 + ... + 596855.

It is an arithmetic number, because the mean of its divisors is an integer number (2501097105).

Almost surely, 2^10003203209 is an apocalyptic number.

It is an amenable number.

10003203209 is a deficient number, since it is larger than the sum of its proper divisors (1185211).

10003203209 is an equidigital number, since it uses as much as digits as its factorization.

10003203209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185210.

The product of its (nonzero) digits is 324, while the sum is 20.

The spelling of 10003203209 in words is "ten billion, three million, two hundred three thousand, two hundred nine".