21200201113 has 24 divisors (see below), whose sum is σ = 26254497600. Its totient is φ = 16761910464.

The previous prime is 21200201111. The next prime is 21200201161. The reversal of 21200201113 is 31110200212.

It is not a de Polignac number, because 21200201113 - 2¹ = 21200201111 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 junction number, because it is equal to n+sod(n) for n = 21200201093 and 21200201102.

It is not an unprimeable number, because it can be changed into a prime (21200201111) 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 23 ways as a sum of consecutive naturals, for example, 1909743 + ... + 1920811.

It is an arithmetic number, because the mean of its divisors is an integer number (1093937400).

Almost surely, 2^21200201113 is an apocalyptic number.

It is an amenable number.

21200201113 is a deficient number, since it is larger than the sum of its proper divisors (5054296487).

21200201113 is a wasteful number, since it uses less digits than its factorization.

21200201113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721 (or 12708 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21200201113 its reverse (31110200212), we get a palindrome (52310401325).

Subtracting 21200201113 from its reverse (31110200212), we obtain a palindrome (9909999099).

The spelling of 21200201113 in words is "twenty-one billion, two hundred million, two hundred one thousand, one hundred thirteen".