20003332073 has 2 divisors, whose sum is σ = 20003332074. Its totient is φ = 20003332072.

The previous prime is 20003331991. The next prime is 20003332079. The reversal of 20003332073 is 37023330002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18139510489 + 1863821584 = 134683^2 + 43172^2 .

It is a cyclic number.

It is not a de Polignac number, because 20003332073 - 2¹⁸ = 20003069929 is a prime.

It is not a weakly prime, because it can be changed into another prime (20003332079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001666036 + 10001666037.

It is an arithmetic number, because the mean of its divisors is an integer number (10001666037).

Almost surely, 2^20003332073 is an apocalyptic number.

It is an amenable number.

20003332073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003332073 is an equidigital number, since it uses as much as digits as its factorization.

20003332073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 23.

Adding to 20003332073 its reverse (37023330002), we get a palindrome (57026662075).

The spelling of 20003332073 in words is "twenty billion, three million, three hundred thirty-two thousand, seventy-three".