201105105 has 16 divisors (see below), whose sum is σ = 327044544. Its totient is φ = 105497280.

The previous prime is 201105103. The next prime is 201105127. The reversal of 201105105 is 501501102.

It is not a de Polignac number, because 201105105 - 2¹ = 201105103 is a prime.

It is a super-2 number, since 2×201105105² = 80886526514122050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (201105103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108979 + ... + 110808.

It is an arithmetic number, because the mean of its divisors is an integer number (20440284).

Almost surely, 2^201105105 is an apocalyptic number.

It is an amenable number.

201105105 is a deficient number, since it is larger than the sum of its proper divisors (125939439).

201105105 is a wasteful number, since it uses less digits than its factorization.

201105105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219856.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 201105105 is about 14181.1531618554. The cubic root of 201105105 is about 585.8786853748.

Adding to 201105105 its reverse (501501102), we get a palindrome (702606207).

The spelling of 201105105 in words is "two hundred one million, one hundred five thousand, one hundred five".