9999203101 has 4 divisors (see below), whose sum is σ = 10231742752. Its totient is φ = 9766663452.

The previous prime is 9999203083. The next prime is 9999203197. The reversal of 9999203101 is 1013029999.

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 9999203101 - 2⁹ = 9999202589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 232539607 = 9999203101 / (9 + 9 + 9 + 9 + 2 + 0 + 3 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999206101) 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, 116269761 + ... + 116269846.

It is an arithmetic number, because the mean of its divisors is an integer number (2557935688).

Almost surely, 2^9999203101 is an apocalyptic number.

It is an amenable number.

9999203101 is a deficient number, since it is larger than the sum of its proper divisors (232539651).

9999203101 is a wasteful number, since it uses less digits than its factorization.

9999203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232539650.

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 9999203101 is about 99996.0154256158. The cubic root of 9999203101 is about 2154.3774596166.

The spelling of 9999203101 in words is "nine billion, nine hundred ninety-nine million, two hundred three thousand, one hundred one".