20413020073 has 2 divisors, whose sum is σ = 20413020074. Its totient is φ = 20413020072.

The previous prime is 20413020041. The next prime is 20413020091. The reversal of 20413020073 is 37002031402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10975286169 + 9437733904 = 104763^2 + 97148^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413020073 - 2⁵ = 20413020041 is a prime.

It is not a weakly prime, because it can be changed into another prime (20413020473) 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, 10206510036 + 10206510037.

It is an arithmetic number, because the mean of its divisors is an integer number (10206510037).

Almost surely, 2^20413020073 is an apocalyptic number.

It is an amenable number.

20413020073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413020073 is an equidigital number, since it uses as much as digits as its factorization.

20413020073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

Adding to 20413020073 its reverse (37002031402), we get a palindrome (57415051475).

The spelling of 20413020073 in words is "twenty billion, four hundred thirteen million, twenty thousand, seventy-three".