200103030021 has 4 divisors (see below), whose sum is σ = 266804040032. Its totient is φ = 133402020012.

The previous prime is 200103029993. The next prime is 200103030031. The reversal of 200103030021 is 120030301002.

It is a happy number.

200103030021 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 200103030021 - 2¹⁴ = 200103013637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200103029979 and 200103030006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200103030031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33350505001 + ... + 33350505006.

It is an arithmetic number, because the mean of its divisors is an integer number (66701010008).

Almost surely, 2^200103030021 is an apocalyptic number.

It is an amenable number.

200103030021 is a deficient number, since it is larger than the sum of its proper divisors (66701010011).

200103030021 is an equidigital number, since it uses as much as digits as its factorization.

200103030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66701010010.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 200103030021 its reverse (120030301002), we get a palindrome (320133331023).

The spelling of 200103030021 in words is "two hundred billion, one hundred three million, thirty thousand, twenty-one".