20000210999 has 2 divisors, whose sum is σ = 20000211000. Its totient is φ = 20000210998.

The previous prime is 20000210987. The next prime is 20000211001. The reversal of 20000210999 is 99901200002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20000210999 is a prime.

It is a Sophie Germain prime.

Together with 20000211001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000218999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000105499 + 10000105500.

It is an arithmetic number, because the mean of its divisors is an integer number (10000105500).

Almost surely, 2^20000210999 is an apocalyptic number.

20000210999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000210999 is an equidigital number, since it uses as much as digits as its factorization.

20000210999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 20000210999 in words is "twenty billion, two hundred ten thousand, nine hundred ninety-nine".