2105111070 has 48 divisors (see below), whose sum is σ = 5484641760. Its totient is φ = 560198592.

The previous prime is 2105111069. The next prime is 2105111111. The reversal of 2105111070 is 701115012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 19816 + ... + 67844.

It is an arithmetic number, because the mean of its divisors is an integer number (114263370).

Almost surely, 2^2105111070 is an apocalyptic number.

2105111070 is an abundant number, since it is smaller than the sum of its proper divisors (3379530690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105111070 is a wasteful number, since it uses less digits than its factorization.

2105111070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48529 (or 48526 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 2105111070 is about 45881.4894047698. The cubic root of 2105111070 is about 1281.6172327624.

Adding to 2105111070 its reverse (701115012), we get a palindrome (2806226082).

The spelling of 2105111070 in words is "two billion, one hundred five million, one hundred eleven thousand, seventy".