20302002109 has 2 divisors, whose sum is σ = 20302002110. Its totient is φ = 20302002108.

The previous prime is 20302002107. The next prime is 20302002121. The reversal of 20302002109 is 90120020302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14635676484 + 5666325625 = 120978^2 + 75275^2 .

It is a cyclic number.

It is not a de Polignac number, because 20302002109 - 2¹ = 20302002107 is a prime.

Together with 20302002107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302002101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151001054 + 10151001055.

It is an arithmetic number, because the mean of its divisors is an integer number (10151001055).

Almost surely, 2^20302002109 is an apocalyptic number.

It is an amenable number.

20302002109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302002109 is an equidigital number, since it uses as much as digits as its factorization.

20302002109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The spelling of 20302002109 in words is "twenty billion, three hundred two million, two thousand, one hundred nine".