1201000105 has 16 divisors (see below), whose sum is σ = 1561469184. Its totient is φ = 883249920.

The previous prime is 1201000103. The next prime is 1201000121. The reversal of 1201000105 is 5010001021.

It is a happy number.

It is not a de Polignac number, because 1201000105 - 2¹ = 1201000103 is a prime.

It is a super-2 number, since 2×1201000105² = 2884802504420022050, 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 = 1201000091 and 1201000100.

It is not an unprimeable number, because it can be changed into a prime (1201000103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160641 + ... + 167950.

It is an arithmetic number, because the mean of its divisors is an integer number (97591824).

Almost surely, 2^1201000105 is an apocalyptic number.

It is an amenable number.

1201000105 is a deficient number, since it is larger than the sum of its proper divisors (360469079).

1201000105 is a wasteful number, since it uses less digits than its factorization.

1201000105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328656.

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

The square root of 1201000105 is about 34655.4484172403. The cubic root of 1201000105 is about 1062.9537011382.

Adding to 1201000105 its reverse (5010001021), we get a palindrome (6211001126).

The spelling of 1201000105 in words is "one billion, two hundred one million, one hundred five", and thus it is an aban number.