243253031321359 has 2 divisors, whose sum is σ = 243253031321360. Its totient is φ = 243253031321358.

The previous prime is 243253031321347. The next prime is 243253031321431. The reversal of 243253031321359 is 953123130352342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243253031321359 - 2⁹ = 243253031320847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243253031321329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121626515660679 + 121626515660680.

It is an arithmetic number, because the mean of its divisors is an integer number (121626515660680).

Almost surely, 2^{243253031321359} is an apocalyptic number.

243253031321359 is a deficient number, since it is larger than the sum of its proper divisors (1).

243253031321359 is an equidigital number, since it uses as much as digits as its factorization.

243253031321359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 46.

The spelling of 243253031321359 in words is "two hundred forty-three trillion, two hundred fifty-three billion, thirty-one million, three hundred twenty-one thousand, three hundred fifty-nine".