20322004009 has 2 divisors, whose sum is σ = 20322004010. Its totient is φ = 20322004008.

The previous prime is 20322003979. The next prime is 20322004013. The reversal of 20322004009 is 90040022302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11630544025 + 8691459984 = 107845^2 + 93228^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322004009 - 2¹¹ = 20322001961 is a prime.

It is not a weakly prime, because it can be changed into another prime (20322074009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161002004 + 10161002005.

It is an arithmetic number, because the mean of its divisors is an integer number (10161002005).

Almost surely, 2^20322004009 is an apocalyptic number.

It is an amenable number.

20322004009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322004009 is an equidigital number, since it uses as much as digits as its factorization.

20322004009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The spelling of 20322004009 in words is "twenty billion, three hundred twenty-two million, four thousand, nine".