2105343120 has 80 divisors (see below), whose sum is σ = 6618540672. Its totient is φ = 553512960.

The previous prime is 2105343109. The next prime is 2105343139. The reversal of 2105343120 is 213435012.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 44737 + ... + 78816.

Almost surely, 2^2105343120 is an apocalyptic number.

2105343120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2105343120 is an abundant number, since it is smaller than the sum of its proper divisors (4513197552).

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

2105343120 is a wasteful number, since it uses less digits than its factorization.

2105343120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123640 (or 123634 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2105343120 is about 45884.0181326788. The cubic root of 2105343120 is about 1281.6643226533.

Adding to 2105343120 its reverse (213435012), we get a palindrome (2318778132).

The spelling of 2105343120 in words is "two billion, one hundred five million, three hundred forty-three thousand, one hundred twenty".