2021108959 has 2 divisors, whose sum is σ = 2021108960. Its totient is φ = 2021108958.

The previous prime is 2021108941. The next prime is 2021109023. The reversal of 2021108959 is 9598011202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021108959 - 2⁹ = 2021108447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021108939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010554479 + 1010554480.

It is an arithmetic number, because the mean of its divisors is an integer number (1010554480).

Almost surely, 2^2021108959 is an apocalyptic number.

2021108959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021108959 is an equidigital number, since it uses as much as digits as its factorization.

2021108959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 2021108959 is about 44956.7454226838. The cubic root of 2021108959 is about 1264.3381497198.

The spelling of 2021108959 in words is "two billion, twenty-one million, one hundred eight thousand, nine hundred fifty-nine".