243054450231201 has 48 divisors (see below), whose sum is σ = 401396738146560. Its totient is φ = 138831500989440.

The previous prime is 243054450231181. The next prime is 243054450231247. The reversal of 243054450231201 is 102132054450342.

It is a happy number.

243054450231201 is a `hidden beast` number, since 2 + 4 + 3 + 0 + 5 + 445 + 0 + 2 + 3 + 1 + 201 = 666.

It is not a de Polignac number, because 243054450231201 - 2⁹ = 243054450230689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243054450231301) 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 in 47 ways as a sum of consecutive naturals, for example, 1680883561 + ... + 1681028153.

It is an arithmetic number, because the mean of its divisors is an integer number (8362432044720).

Almost surely, 2^{243054450231201} is an apocalyptic number.

243054450231201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243054450231201 is a deficient number, since it is larger than the sum of its proper divisors (158342287915359).

243054450231201 is a wasteful number, since it uses less digits than its factorization.

243054450231201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155326 (or 155323 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 243054450231201 in words is "two hundred forty-three trillion, fifty-four billion, four hundred fifty million, two hundred thirty-one thousand, two hundred one".