1020165011 has 2 divisors, whose sum is σ = 1020165012. Its totient is φ = 1020165010.

The previous prime is 1020165007. The next prime is 1020165049. The reversal of 1020165011 is 1105610201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020165011 - 2² = 1020165007 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020165061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510082505 + 510082506.

It is an arithmetic number, because the mean of its divisors is an integer number (510082506).

Almost surely, 2^1020165011 is an apocalyptic number.

1020165011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020165011 is an equidigital number, since it uses as much as digits as its factorization.

1020165011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1020165011 is about 31940.0220882829. The cubic root of 1020165011 is about 1006.6769889273.

Adding to 1020165011 its reverse (1105610201), we get a palindrome (2125775212).

The spelling of 1020165011 in words is "one billion, twenty million, one hundred sixty-five thousand, eleven".