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200101 = 1118191

200101 has 4 divisors (see below), whose sum is σ = 218304. Its totient is φ = 181900.

The previous prime is 200087. The next prime is 200117. The reversal of 200101 is 101002.

Adding to 200101 its reverse (101002), we get a palindrome (301103).

Subtracting from 200101 its reverse (101002), we obtain a palindrome (99099).

Multipling 200101 by its reverse (101002), we get a palindrome (20210601202).

200101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 200101 - 217 = 69029 is a prime.

It is a Duffinian number.

200101 is a modest number, since divided by 101 gives 20 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9085 + ... + 9106.

It is an arithmetic number, because the mean of its divisors is an integer number (54576).

2200101 is an apocalyptic number.

It is an amenable number.

200101 is a deficient number, since it is larger than the sum of its proper divisors (18203).

200101 is a wasteful number, since it uses less digits than its factorization.

200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18202.

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 200101 is about 447.3265026801. The cubic root of 200101 is about 58.4901973007.

The spelling of 200101 in words is "two hundred thousand, one hundred one", and thus it is an iban number.

Divisors: 1 11 18191 200101