20210021059 has 2 divisors, whose sum is σ = 20210021060. Its totient is φ = 20210021058.

The previous prime is 20210021021. The next prime is 20210021131. The reversal of 20210021059 is 95012001202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20210021059 - 2⁷ = 20210020931 is a prime.

It is not a weakly prime, because it can be changed into another prime (20210024059) 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, 10105010529 + 10105010530.

It is an arithmetic number, because the mean of its divisors is an integer number (10105010530).

Almost surely, 2^20210021059 is an apocalyptic number.

20210021059 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210021059 is an equidigital number, since it uses as much as digits as its factorization.

20210021059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The spelling of 20210021059 in words is "twenty billion, two hundred ten million, twenty-one thousand, fifty-nine".