243120574776231 has 8 divisors (see below), whose sum is σ = 360178629298160. Its totient is φ = 162080383184136.

The previous prime is 243120574776229. The next prime is 243120574776239. The reversal of 243120574776231 is 132677475021342.

243120574776231 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 2 + 0 + 5 + 7 + 4 + 7 + 7 + 623 + 1 = 666.

It is not a de Polignac number, because 243120574776231 - 2¹ = 243120574776229 is a prime.

It is a super-2 number, since 2×243120574776231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243120574776239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4502232866200 + ... + 4502232866253.

It is an arithmetic number, because the mean of its divisors is an integer number (45022328662270).

Almost surely, 2^{243120574776231} is an apocalyptic number.

243120574776231 is a deficient number, since it is larger than the sum of its proper divisors (117058054521929).

243120574776231 is an equidigital number, since it uses as much as digits as its factorization.

243120574776231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9004465732462 (or 9004465732456 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 54.

The spelling of 243120574776231 in words is "two hundred forty-three trillion, one hundred twenty billion, five hundred seventy-four million, seven hundred seventy-six thousand, two hundred thirty-one".