21023201000303 has 4 divisors (see below), whose sum is σ = 21023707368768. Its totient is φ = 21022694631840.

The previous prime is 21023201000279. The next prime is 21023201000339. The reversal of 21023201000303 is 30300010232012.

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 21023201000303 - 2¹⁰ = 21023200999279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21023201000393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253121951 + ... + 253204992.

It is an arithmetic number, because the mean of its divisors is an integer number (5255926842192).

Almost surely, 2^{21023201000303} is an apocalyptic number.

21023201000303 is a deficient number, since it is larger than the sum of its proper divisors (506368465).

21023201000303 is an equidigital number, since it uses as much as digits as its factorization.

21023201000303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506368464.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21023201000303 its reverse (30300010232012), we get a palindrome (51323211232315).

The spelling of 21023201000303 in words is "twenty-one trillion, twenty-three billion, two hundred one million, three hundred three", and thus it is an aban number.