202003020073 has 2 divisors, whose sum is σ = 202003020074. Its totient is φ = 202003020072.

The previous prime is 202003020031. The next prime is 202003020101. The reversal of 202003020073 is 370020300202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165919358224 + 36083661849 = 407332^2 + 189957^2 .

It is a cyclic number.

It is not a de Polignac number, because 202003020073 - 2²⁵ = 201969465641 is a prime.

It is a super-3 number, since 3×202003020073³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 202003020073.

It is not a weakly prime, because it can be changed into another prime (202003020173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101001510036 + 101001510037.

It is an arithmetic number, because the mean of its divisors is an integer number (101001510037).

Almost surely, 2^202003020073 is an apocalyptic number.

It is an amenable number.

202003020073 is a deficient number, since it is larger than the sum of its proper divisors (1).

202003020073 is an equidigital number, since it uses as much as digits as its factorization.

202003020073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 19.

Adding to 202003020073 its reverse (370020300202), we get a palindrome (572023320275).

The spelling of 202003020073 in words is "two hundred two billion, three million, twenty thousand, seventy-three".