100201105 has 4 divisors (see below), whose sum is σ = 120241332. Its totient is φ = 80160880.

The previous prime is 100201103. The next prime is 100201109. The reversal of 100201105 is 501102001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41770369 + 58430736 = 6463^2 + 7644^2 .

It is not a de Polignac number, because 100201105 - 2¹ = 100201103 is a prime.

It is a super-2 number, since 2×100201105² = 20080522886442050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100201091 and 100201100.

It is not an unprimeable number, because it can be changed into a prime (100201103) 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, 10020106 + ... + 10020115.

It is an arithmetic number, because the mean of its divisors is an integer number (30060333).

Almost surely, 2^100201105 is an apocalyptic number.

It is an amenable number.

100201105 is a deficient number, since it is larger than the sum of its proper divisors (20040227).

100201105 is an equidigital number, since it uses as much as digits as its factorization.

100201105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20040226.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 100201105 is about 10010.0501996743. The cubic root of 100201105 is about 464.4698239228.

Adding to 100201105 its reverse (501102001), we get a palindrome (601303106).

The spelling of 100201105 in words is "one hundred million, two hundred one thousand, one hundred five".