1020210019973 has 2 divisors, whose sum is σ = 1020210019974. Its totient is φ = 1020210019972.

The previous prime is 1020210019951. The next prime is 1020210020051. The reversal of 1020210019973 is 3799100120201.

1020210019973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 527914136929 + 492295883044 = 726577^2 + 701638^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020210019973 - 2¹⁸ = 1020209757829 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 (1020210069973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510105009986 + 510105009987.

It is an arithmetic number, because the mean of its divisors is an integer number (510105009987).

Almost surely, 2^{1020210019973} is an apocalyptic number.

It is an amenable number.

1020210019973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020210019973 is an equidigital number, since it uses as much as digits as its factorization.

1020210019973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 1020210019973 in words is "one trillion, twenty billion, two hundred ten million, nineteen thousand, nine hundred seventy-three".