243112302439 has 2 divisors, whose sum is σ = 243112302440. Its totient is φ = 243112302438.

The previous prime is 243112302421. The next prime is 243112302463. The reversal of 243112302439 is 934203211342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243112302439 - 2⁷ = 243112302311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243112102439) 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 as a sum of consecutive naturals, namely, 121556151219 + 121556151220.

It is an arithmetic number, because the mean of its divisors is an integer number (121556151220).

Almost surely, 2^243112302439 is an apocalyptic number.

243112302439 is a deficient number, since it is larger than the sum of its proper divisors (1).

243112302439 is an equidigital number, since it uses as much as digits as its factorization.

243112302439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 243112302439 in words is "two hundred forty-three billion, one hundred twelve million, three hundred two thousand, four hundred thirty-nine".