2100434705 has 16 divisors (see below), whose sum is σ = 2670098880. Its totient is φ = 1581757632.

The previous prime is 2100434671. The next prime is 2100434753. The reversal of 2100434705 is 5074340012.

It is a cyclic number.

It is not a de Polignac number, because 2100434705 - 2⁶ = 2100434641 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55499 + ... + 85328.

It is an arithmetic number, because the mean of its divisors is an integer number (166881180).

Almost surely, 2^2100434705 is an apocalyptic number.

It is an amenable number.

2100434705 is a deficient number, since it is larger than the sum of its proper divisors (569664175).

2100434705 is a wasteful number, since it uses less digits than its factorization.

2100434705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141008.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2100434705 is about 45830.4997245284. The cubic root of 2100434705 is about 1280.6675198699.

Adding to 2100434705 its reverse (5074340012), we get a palindrome (7174774717).

The spelling of 2100434705 in words is "two billion, one hundred million, four hundred thirty-four thousand, seven hundred five".