21300302101 has 8 divisors (see below), whose sum is σ = 22943620280. Its totient is φ = 19657674432.

The previous prime is 21300302077. The next prime is 21300302113. The reversal of 21300302101 is 10120300312.

It can be written as a sum of positive squares in 4 ways, for example, as 5456038225 + 15844263876 = 73865^2 + 125874^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21300302101 - 2⁷ = 21300301973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300302501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107646 + ... + 232783.

It is an arithmetic number, because the mean of its divisors is an integer number (2867952535).

Almost surely, 2^21300302101 is an apocalyptic number.

It is an amenable number.

21300302101 is a deficient number, since it is larger than the sum of its proper divisors (1643318179).

21300302101 is a wasteful number, since it uses less digits than its factorization.

21300302101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345255.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21300302101 its reverse (10120300312), we get a palindrome (31420602413).

The spelling of 21300302101 in words is "twenty-one billion, three hundred million, three hundred two thousand, one hundred one".