200002020973 has 2 divisors, whose sum is σ = 200002020974. Its totient is φ = 200002020972.

The previous prime is 200002020931. The next prime is 200002021091. The reversal of 200002020973 is 379020200002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199999467369 + 2553604 = 447213^2 + 1598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200002020973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200002020923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100001010486 + 100001010487.

It is an arithmetic number, because the mean of its divisors is an integer number (100001010487).

Almost surely, 2^200002020973 is an apocalyptic number.

It is an amenable number.

200002020973 is a deficient number, since it is larger than the sum of its proper divisors (1).

200002020973 is an equidigital number, since it uses as much as digits as its factorization.

200002020973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 200002020973 its reverse (379020200002), we get a palindrome (579022220975).

The spelling of 200002020973 in words is "two hundred billion, two million, twenty thousand, nine hundred seventy-three".