20023330009 has 2 divisors, whose sum is σ = 20023330010. Its totient is φ = 20023330008.

The previous prime is 20023330007. The next prime is 20023330013. The reversal of 20023330009 is 90003332002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19978974409 + 44355600 = 141347^2 + 6660^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023330009 - 2¹ = 20023330007 is a prime.

Together with 20023330007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20023330003) 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, 10011665004 + 10011665005.

It is an arithmetic number, because the mean of its divisors is an integer number (10011665005).

Almost surely, 2^20023330009 is an apocalyptic number.

It is an amenable number.

20023330009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023330009 is an equidigital number, since it uses as much as digits as its factorization.

20023330009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

The spelling of 20023330009 in words is "twenty billion, twenty-three million, three hundred thirty thousand, nine".