21203200313003 has 4 divisors (see below), whose sum is σ = 21776259780960. Its totient is φ = 20630140845048.

The previous prime is 21203200312997. The next prime is 21203200313033. The reversal of 21203200313003 is 30031300230212.

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 21203200313003 - 2³⁶ = 21134480836267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21203200313033) 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, 286529733923 + ... + 286529733996.

It is an arithmetic number, because the mean of its divisors is an integer number (5444064945240).

Almost surely, 2^{21203200313003} is an apocalyptic number.

21203200313003 is a deficient number, since it is larger than the sum of its proper divisors (573059467957).

21203200313003 is an equidigital number, since it uses as much as digits as its factorization.

21203200313003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573059467956.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21203200313003 its reverse (30031300230212), we get a palindrome (51234500543215).

The spelling of 21203200313003 in words is "twenty-one trillion, two hundred three billion, two hundred million, three hundred thirteen thousand, three".