2105996307 has 4 divisors (see below), whose sum is σ = 2807995080. Its totient is φ = 1403997536.

The previous prime is 2105996293. The next prime is 2105996317. The reversal of 2105996307 is 7036995012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2105996307 - 2¹¹ = 2105994259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105996317) 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 3 ways as a sum of consecutive naturals, for example, 350999382 + ... + 350999387.

It is an arithmetic number, because the mean of its divisors is an integer number (701998770).

Almost surely, 2^2105996307 is an apocalyptic number.

2105996307 is a deficient number, since it is larger than the sum of its proper divisors (701998773).

2105996307 is an equidigital number, since it uses as much as digits as its factorization.

2105996307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701998772.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 2105996307 is about 45891.1353858237. The cubic root of 2105996307 is about 1281.7968552721.

The spelling of 2105996307 in words is "two billion, one hundred five million, nine hundred ninety-six thousand, three hundred seven".