243015253073 has 2 divisors, whose sum is σ = 243015253074. Its totient is φ = 243015253072.

The previous prime is 243015253003. The next prime is 243015253109. The reversal of 243015253073 is 370352510342.

243015253073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131611505089 + 111403747984 = 362783^2 + 333772^2 .

It is a cyclic number.

It is not a de Polignac number, because 243015253073 - 2¹² = 243015248977 is a prime.

It is a super-2 number, since 2×243015253073² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (243015253003) 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, 121507626536 + 121507626537.

It is an arithmetic number, because the mean of its divisors is an integer number (121507626537).

Almost surely, 2^243015253073 is an apocalyptic number.

It is an amenable number.

243015253073 is a deficient number, since it is larger than the sum of its proper divisors (1).

243015253073 is an equidigital number, since it uses as much as digits as its factorization.

243015253073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 35.

The spelling of 243015253073 in words is "two hundred forty-three billion, fifteen million, two hundred fifty-three thousand, seventy-three".