9899921203 has 4 divisors (see below), whose sum is σ = 9901385368. Its totient is φ = 9898457040.

The previous prime is 9899921201. The next prime is 9899921209. The reversal of 9899921203 is 3021299989.

9899921203 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 9899921203 - 2¹ = 9899921201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9899921201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721893 + ... + 735478.

It is an arithmetic number, because the mean of its divisors is an integer number (2475346342).

Almost surely, 2^9899921203 is an apocalyptic number.

9899921203 is a deficient number, since it is larger than the sum of its proper divisors (1464165).

9899921203 is a wasteful number, since it uses less digits than its factorization.

9899921203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464164.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 9899921203 is about 99498.3477400504. The cubic root of 9899921203 is about 2147.2234721952.

The spelling of 9899921203 in words is "nine billion, eight hundred ninety-nine million, nine hundred twenty-one thousand, two hundred three".