20210000099 has 2 divisors, whose sum is σ = 20210000100. Its totient is φ = 20210000098.

The previous prime is 20210000077. The next prime is 20210000137. The reversal of 20210000099 is 99000001202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20210000099 - 2³² = 15915032803 is a prime.

It is not a weakly prime, because it can be changed into another prime (20210000039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105000049 + 10105000050.

It is an arithmetic number, because the mean of its divisors is an integer number (10105000050).

Almost surely, 2^20210000099 is an apocalyptic number.

20210000099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210000099 is an equidigital number, since it uses as much as digits as its factorization.

20210000099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 20210000099 in words is "twenty billion, two hundred ten million, ninety-nine", and thus it is an aban number.