21300301003 has 4 divisors (see below), whose sum is σ = 21300891040. Its totient is φ = 21299710968.

The previous prime is 21300300997. The next prime is 21300301021. The reversal of 21300301003 is 30010300312.

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 21300301003 - 2¹⁷ = 21300169931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21300311003) 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, 237075 + ... + 314332.

It is an arithmetic number, because the mean of its divisors is an integer number (5325222760).

Almost surely, 2^21300301003 is an apocalyptic number.

21300301003 is a deficient number, since it is larger than the sum of its proper divisors (590037).

21300301003 is an equidigital number, since it uses as much as digits as its factorization.

21300301003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590036.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 21300301003 its reverse (30010300312), we get a palindrome (51310601315).

The spelling of 21300301003 in words is "twenty-one billion, three hundred million, three hundred one thousand, three".