8081120305 has 4 divisors (see below), whose sum is σ = 9697344372. Its totient is φ = 6464896240.

The previous prime is 8081120287. The next prime is 8081120347. The reversal of 8081120305 is 5030211808.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3678665104 + 4402455201 = 60652^2 + 66351^2 .

It is not a de Polignac number, because 8081120305 - 2¹³ = 8081112113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808112026 + ... + 808112035.

It is an arithmetic number, because the mean of its divisors is an integer number (2424336093).

Almost surely, 2^8081120305 is an apocalyptic number.

It is an amenable number.

8081120305 is a deficient number, since it is larger than the sum of its proper divisors (1616224067).

8081120305 is a wasteful number, since it uses less digits than its factorization.

8081120305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616224066.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 8081120305 is about 89895.0516157591. The cubic root of 8081120305 is about 2006.7373042975.

The spelling of 8081120305 in words is "eight billion, eighty-one million, one hundred twenty thousand, three hundred five".