21300020201 has 16 divisors (see below), whose sum is σ = 21896952000. Its totient is φ = 20707964928.

The previous prime is 21300020197. The next prime is 21300020213. The reversal of 21300020201 is 10202000312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21300020201 - 2² = 21300020197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21300026201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10146650 + ... + 10148748.

It is an arithmetic number, because the mean of its divisors is an integer number (1368559500).

Almost surely, 2^21300020201 is an apocalyptic number.

It is an amenable number.

21300020201 is a deficient number, since it is larger than the sum of its proper divisors (596931799).

21300020201 is a wasteful number, since it uses less digits than its factorization.

21300020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21300020201 its reverse (10202000312), we get a palindrome (31502020513).

The spelling of 21300020201 in words is "twenty-one billion, three hundred million, twenty thousand, two hundred one".