2101200113 has 4 divisors (see below), whose sum is σ = 2101382640. Its totient is φ = 2101017588.

The previous prime is 2101200097. The next prime is 2101200137. The reversal of 2101200113 is 3110021012.

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 2101200113 - 2⁴ = 2101200097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101200094 and 2101200103.

It is not an unprimeable number, because it can be changed into a prime (2101200163) 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 3 ways as a sum of consecutive naturals, for example, 72743 + ... + 97436.

It is an arithmetic number, because the mean of its divisors is an integer number (525345660).

Almost surely, 2^2101200113 is an apocalyptic number.

It is an amenable number.

2101200113 is a deficient number, since it is larger than the sum of its proper divisors (182527).

2101200113 is a wasteful number, since it uses less digits than its factorization.

2101200113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182526.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2101200113 is about 45838.8493856467. The cubic root of 2101200113 is about 1280.8230613426.

Adding to 2101200113 its reverse (3110021012), we get a palindrome (5211221125).

The spelling of 2101200113 in words is "two billion, one hundred one million, two hundred thousand, one hundred thirteen".