21300090059 has 2 divisors, whose sum is σ = 21300090060. Its totient is φ = 21300090058.

The previous prime is 21300090043. The next prime is 21300090061. The reversal of 21300090059 is 95009000312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21300090059 - 2⁴ = 21300090043 is a prime.

Together with 21300090061, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21302090059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650045029 + 10650045030.

It is an arithmetic number, because the mean of its divisors is an integer number (10650045030).

Almost surely, 2^21300090059 is an apocalyptic number.

21300090059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300090059 is an equidigital number, since it uses as much as digits as its factorization.

21300090059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 21300090059 in words is "twenty-one billion, three hundred million, ninety thousand, fifty-nine".