2101030105 has 8 divisors (see below), whose sum is σ = 2630855232. Its totient is φ = 1607744688.

The previous prime is 2101030103. The next prime is 2101030109. The reversal of 2101030105 is 5010301012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101030105 - 2¹ = 2101030103 is a prime.

It is a super-2 number, since 2×2101030105² = 8828655004232622050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101030103) 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 7 ways as a sum of consecutive naturals, for example, 9134799 + ... + 9135028.

It is an arithmetic number, because the mean of its divisors is an integer number (328856904).

Almost surely, 2^2101030105 is an apocalyptic number.

It is an amenable number.

2101030105 is a deficient number, since it is larger than the sum of its proper divisors (529825127).

2101030105 is a wasteful number, since it uses less digits than its factorization.

2101030105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18269855.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 2101030105 is about 45836.9949385865. The cubic root of 2101030105 is about 1280.7885166335.

Adding to 2101030105 its reverse (5010301012), we get a palindrome (7111331117).

It can be divided in two parts, 21010 and 30105, that added together give a palindrome (51115).

The spelling of 2101030105 in words is "two billion, one hundred one million, thirty thousand, one hundred five".