21020020100059 has 2 divisors, whose sum is σ = 21020020100060. Its totient is φ = 21020020100058.

The previous prime is 21020020099927. The next prime is 21020020100099. The reversal of 21020020100059 is 95000102002012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21020020100059 is a prime.

It is not a weakly prime, because it can be changed into another prime (21020020100099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510010050029 + 10510010050030.

It is an arithmetic number, because the mean of its divisors is an integer number (10510010050030).

Almost surely, 2^{21020020100059} is an apocalyptic number.

21020020100059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020020100059 is an equidigital number, since it uses as much as digits as its factorization.

21020020100059 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 21020020100059 in words is "twenty-one trillion, twenty billion, twenty million, one hundred thousand, fifty-nine".