21300300113 has 4 divisors (see below), whose sum is σ = 22421368560. Its totient is φ = 20179231668.

The previous prime is 21300300097. The next prime is 21300300139. The reversal of 21300300113 is 31100300312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21300300113 - 2⁴ = 21300300097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21300300013) 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 3 ways as a sum of consecutive naturals, for example, 560534195 + ... + 560534232.

It is an arithmetic number, because the mean of its divisors is an integer number (5605342140).

Almost surely, 2^21300300113 is an apocalyptic number.

It is an amenable number.

21300300113 is a deficient number, since it is larger than the sum of its proper divisors (1121068447).

21300300113 is a wasteful number, since it uses less digits than its factorization.

21300300113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121068446.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 21300300113 its reverse (31100300312), we get a palindrome (52400600425).

The spelling of 21300300113 in words is "twenty-one billion, three hundred million, three hundred thousand, one hundred thirteen".