20300000009 has 2 divisors, whose sum is σ = 20300000010. Its totient is φ = 20300000008.

The previous prime is 20299999957. The next prime is 20300000069. The reversal of 20300000009 is 90000000302.

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., 20298270784 + 1729225 = 142472^2 + 1315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20300000009 is a prime.

It is a super-3 number, since 3×20300000009³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20299999939 and 20300000002.

It is not a weakly prime, because it can be changed into another prime (20300000069) 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, 10150000004 + 10150000005.

It is an arithmetic number, because the mean of its divisors is an integer number (10150000005).

Almost surely, 2^20300000009 is an apocalyptic number.

It is an amenable number.

20300000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300000009 is an equidigital number, since it uses as much as digits as its factorization.

20300000009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

The spelling of 20300000009 in words is "twenty billion, three hundred million, nine", and thus it is an aban number.