1020116775 has 24 divisors (see below), whose sum is σ = 1690405200. Its totient is φ = 542832640.

The previous prime is 1020116761. The next prime is 1020116791. The reversal of 1020116775 is 5776110201.

It is not a de Polignac number, because 1020116775 - 2⁴ = 1020116759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18529 + ... + 48821.

It is an arithmetic number, because the mean of its divisors is an integer number (70433550).

Almost surely, 2^1020116775 is an apocalyptic number.

1020116775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020116775 is a deficient number, since it is larger than the sum of its proper divisors (670288425).

1020116775 is a wasteful number, since it uses less digits than its factorization.

1020116775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30755 (or 30750 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 30.

The square root of 1020116775 is about 31939.2669765604. The cubic root of 1020116775 is about 1006.6611225932.

Adding to 1020116775 its reverse (5776110201), we get a palindrome (6796226976).

The spelling of 1020116775 in words is "one billion, twenty million, one hundred sixteen thousand, seven hundred seventy-five".