243087071062973 has 2 divisors, whose sum is σ = 243087071062974. Its totient is φ = 243087071062972.

The previous prime is 243087071062963. The next prime is 243087071063047. The reversal of 243087071062973 is 379260170780342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239048148837124 + 4038922225849 = 15461182^2 + 2009707^2 .

It is a cyclic number.

It is not a de Polignac number, because 243087071062973 - 2¹⁰ = 243087071061949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243087071062963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121543535531486 + 121543535531487.

It is an arithmetic number, because the mean of its divisors is an integer number (121543535531487).

Almost surely, 2^{243087071062973} is an apocalyptic number.

It is an amenable number.

243087071062973 is a deficient number, since it is larger than the sum of its proper divisors (1).

243087071062973 is an equidigital number, since it uses as much as digits as its factorization.

243087071062973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21337344, while the sum is 59.

The spelling of 243087071062973 in words is "two hundred forty-three trillion, eighty-seven billion, seventy-one million, sixty-two thousand, nine hundred seventy-three".