202001019973 has 2 divisors, whose sum is σ = 202001019974. Its totient is φ = 202001019972.

The previous prime is 202001019917. The next prime is 202001020033. The reversal of 202001019973 is 379910100202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109291731649 + 92709288324 = 330593^2 + 304482^2 .

It is a cyclic number.

It is not a de Polignac number, because 202001019973 - 2³³ = 193411085381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202001019173) 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, 101000509986 + 101000509987.

It is an arithmetic number, because the mean of its divisors is an integer number (101000509987).

Almost surely, 2^202001019973 is an apocalyptic number.

It is an amenable number.

202001019973 is a deficient number, since it is larger than the sum of its proper divisors (1).

202001019973 is an equidigital number, since it uses as much as digits as its factorization.

202001019973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The spelling of 202001019973 in words is "two hundred two billion, one million, nineteen thousand, nine hundred seventy-three".