20200099 has 2 divisors, whose sum is σ = 20200100. Its totient is φ = 20200098.

The previous prime is 20200093. The next prime is 20200109. The reversal of 20200099 is 99000202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20200099 - 2²¹ = 18102947 is a prime.

It is not a weakly prime, because it can be changed into another prime (20200093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100049 + 10100050.

It is an arithmetic number, because the mean of its divisors is an integer number (10100050).

Almost surely, 2^20200099 is an apocalyptic number.

20200099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200099 is an equidigital number, since it uses as much as digits as its factorization.

20200099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 20200099 is about 4494.4520244408. The cubic root of 20200099 is about 272.3440130739.

The spelling of 20200099 in words is "twenty million, two hundred thousand, ninety-nine".