1021000119973 has 2 divisors, whose sum is σ = 1021000119974. Its totient is φ = 1021000119972.

The previous prime is 1021000119967. The next prime is 1021000119977. The reversal of 1021000119973 is 3799110001201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 852479196804 + 168520923169 = 923298^2 + 410513^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021000119973 - 2⁵ = 1021000119941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021000119977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510500059986 + 510500059987.

It is an arithmetic number, because the mean of its divisors is an integer number (510500059987).

Almost surely, 2^{1021000119973} is an apocalyptic number.

It is an amenable number.

1021000119973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021000119973 is an equidigital number, since it uses as much as digits as its factorization.

1021000119973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 34.

The spelling of 1021000119973 in words is "one trillion, twenty-one billion, one hundred nineteen thousand, nine hundred seventy-three".