1020102019973 has 2 divisors, whose sum is σ = 1020102019974. Its totient is φ = 1020102019972.

The previous prime is 1020102019949. The next prime is 1020102020011. The reversal of 1020102019973 is 3799102010201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608248689409 + 411853330564 = 779903^2 + 641758^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020102019973 - 2²⁰ = 1020100971397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020102019933) 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, 510051009986 + 510051009987.

It is an arithmetic number, because the mean of its divisors is an integer number (510051009987).

Almost surely, 2^{1020102019973} is an apocalyptic number.

It is an amenable number.

1020102019973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020102019973 is an equidigital number, since it uses as much as digits as its factorization.

1020102019973 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 35.

The spelling of 1020102019973 in words is "one trillion, twenty billion, one hundred two million, nineteen thousand, nine hundred seventy-three".