2020009291 has 2 divisors, whose sum is σ = 2020009292. Its totient is φ = 2020009290.

The previous prime is 2020009261. The next prime is 2020009307. The reversal of 2020009291 is 1929000202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020009291 - 2¹¹ = 2020007243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020009231) 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, 1010004645 + 1010004646.

It is an arithmetic number, because the mean of its divisors is an integer number (1010004646).

Almost surely, 2^2020009291 is an apocalyptic number.

2020009291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020009291 is an equidigital number, since it uses as much as digits as its factorization.

2020009291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2020009291 is about 44944.5134693880. The cubic root of 2020009291 is about 1264.1088029489.

Adding to 2020009291 its reverse (1929000202), we get a palindrome (3949009493).

The spelling of 2020009291 in words is "two billion, twenty million, nine thousand, two hundred ninety-one".