2021010773 has 2 divisors, whose sum is σ = 2021010774. Its totient is φ = 2021010772.

The previous prime is 2021010769. The next prime is 2021010799. The reversal of 2021010773 is 3770101202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1176352804 + 844657969 = 34298^2 + 29063^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021010773 - 2² = 2021010769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021010973) 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 as a sum of consecutive naturals, namely, 1010505386 + 1010505387.

It is an arithmetic number, because the mean of its divisors is an integer number (1010505387).

Almost surely, 2^2021010773 is an apocalyptic number.

It is an amenable number.

2021010773 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021010773 is an equidigital number, since it uses as much as digits as its factorization.

2021010773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 2021010773 is about 44955.6534042160. The cubic root of 2021010773 is about 1264.3176754293.

Adding to 2021010773 its reverse (3770101202), we get a palindrome (5791111975).

The spelling of 2021010773 in words is "two billion, twenty-one million, ten thousand, seven hundred seventy-three".