21103000301 has 4 divisors (see below), whose sum is σ = 21501170172. Its totient is φ = 20704830432.

The previous prime is 21103000253. The next prime is 21103000309. The reversal of 21103000301 is 10300030112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14517840100 + 6585160201 = 120490^2 + 81149^2 .

It is a cyclic number.

It is not a de Polignac number, because 21103000301 - 2¹⁰ = 21102999277 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 (21103000309) 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, 199084856 + ... + 199084961.

It is an arithmetic number, because the mean of its divisors is an integer number (5375292543).

Almost surely, 2^21103000301 is an apocalyptic number.

It is an amenable number.

21103000301 is a deficient number, since it is larger than the sum of its proper divisors (398169871).

21103000301 is an equidigital number, since it uses as much as digits as its factorization.

21103000301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398169870.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 21103000301 its reverse (10300030112), we get a palindrome (31403030413).

The spelling of 21103000301 in words is "twenty-one billion, one hundred three million, three hundred one", and thus it is an aban number.