2003020320073 has 2 divisors, whose sum is σ = 2003020320074. Its totient is φ = 2003020320072.

The previous prime is 2003020320043. The next prime is 2003020320131. The reversal of 2003020320073 is 3700230203002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1150219785289 + 852800534784 = 1072483^2 + 923472^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003020320073 - 2³³ = 1994430385481 is a prime.

It is not a weakly prime, because it can be changed into another prime (2003020320043) 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, 1001510160036 + 1001510160037.

It is an arithmetic number, because the mean of its divisors is an integer number (1001510160037).

Almost surely, 2^{2003020320073} is an apocalyptic number.

It is an amenable number.

2003020320073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003020320073 is an equidigital number, since it uses as much as digits as its factorization.

2003020320073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 22.

Adding to 2003020320073 its reverse (3700230203002), we get a palindrome (5703250523075).

The spelling of 2003020320073 in words is "two trillion, three billion, twenty million, three hundred twenty thousand, seventy-three".