21200200113 has 32 divisors (see below), whose sum is σ = 30602575872. Its totient is φ = 13016203200.

The previous prime is 21200200111. The next prime is 21200200139. The reversal of 21200200113 is 31100200212.

It is not a de Polignac number, because 21200200113 - 2¹ = 21200200111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200200111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396228 + ... + 446538.

It is an arithmetic number, because the mean of its divisors is an integer number (956330496).

Almost surely, 2^21200200113 is an apocalyptic number.

21200200113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21200200113 is a deficient number, since it is larger than the sum of its proper divisors (9402375759).

21200200113 is a wasteful number, since it uses less digits than its factorization.

21200200113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50565.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21200200113 its reverse (31100200212), we get a palindrome (52300400325).

Subtracting 21200200113 from its reverse (31100200212), we obtain a palindrome (9900000099).

The spelling of 21200200113 in words is "twenty-one billion, two hundred million, two hundred thousand, one hundred thirteen".