273582320021 has 2 divisors, whose sum is σ = 273582320022. Its totient is φ = 273582320020.

The previous prime is 273582319991. The next prime is 273582320093. The reversal of 273582320021 is 120023285372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201443880625 + 72138439396 = 448825^2 + 268586^2 .

It is a cyclic number.

It is not a de Polignac number, because 273582320021 - 2⁶ = 273582319957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273582320321) 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, 136791160010 + 136791160011.

It is an arithmetic number, because the mean of its divisors is an integer number (136791160011).

Almost surely, 2^273582320021 is an apocalyptic number.

It is an amenable number.

273582320021 is a deficient number, since it is larger than the sum of its proper divisors (1).

273582320021 is an equidigital number, since it uses as much as digits as its factorization.

273582320021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 273582320021 in words is "two hundred seventy-three billion, five hundred eighty-two million, three hundred twenty thousand, twenty-one".