1020080771 has 8 divisors (see below), whose sum is σ = 1075168080. Its totient is φ = 966320992.

The previous prime is 1020080749. The next prime is 1020080777. The reversal of 1020080771 is 1770800201.

1020080771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020080771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020080771.

It is not an unprimeable number, because it can be changed into a prime (1020080777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330305 + ... + 333378.

It is an arithmetic number, because the mean of its divisors is an integer number (134396010).

Almost surely, 2^1020080771 is an apocalyptic number.

1020080771 is a deficient number, since it is larger than the sum of its proper divisors (55087309).

1020080771 is an equidigital number, since it uses as much as digits as its factorization.

1020080771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663765.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 1020080771 is about 31938.7033393655. The cubic root of 1020080771 is about 1006.6492794218.

Adding to 1020080771 its reverse (1770800201), we get a palindrome (2790880972).

The spelling of 1020080771 in words is "one billion, twenty million, eighty thousand, seven hundred seventy-one".