21230300113 has 16 divisors (see below), whose sum is σ = 23224170240. Its totient is φ = 19247155200.

The previous prime is 21230300083. The next prime is 21230300129. The reversal of 21230300113 is 31100303212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21230300113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21230300513) 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 15 ways as a sum of consecutive naturals, for example, 9355543 + ... + 9357811.

It is an arithmetic number, because the mean of its divisors is an integer number (1451510640).

Almost surely, 2^21230300113 is an apocalyptic number.

It is an amenable number.

21230300113 is a deficient number, since it is larger than the sum of its proper divisors (1993870127).

21230300113 is a wasteful number, since it uses less digits than its factorization.

21230300113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21230300113 its reverse (31100303212), we get a palindrome (52330603325).

The spelling of 21230300113 in words is "twenty-one billion, two hundred thirty million, three hundred thousand, one hundred thirteen".