21313000300203 has 8 divisors (see below), whose sum is σ = 31574815259600. Its totient is φ = 14208666866784.

The previous prime is 21313000300199. The next prime is 21313000300211. The reversal of 21313000300203 is 30200300031312.

21313000300203 is a `hidden beast` number, since 2 + 131 + 30 + 0 + 0 + 300 + 203 = 666.

It is not a de Polignac number, because 21313000300203 - 2² = 21313000300199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21313000300003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394685190718 + ... + 394685190771.

It is an arithmetic number, because the mean of its divisors is an integer number (3946851907450).

Almost surely, 2^{21313000300203} is an apocalyptic number.

21313000300203 is a deficient number, since it is larger than the sum of its proper divisors (10261814959397).

21313000300203 is an equidigital number, since it uses as much as digits as its factorization.

21313000300203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789370381498 (or 789370381492 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 21313000300203 its reverse (30200300031312), we get a palindrome (51513300331515).

The spelling of 21313000300203 in words is "twenty-one trillion, three hundred thirteen billion, three hundred thousand, two hundred three".