243031132349 has 2 divisors, whose sum is σ = 243031132350. Its totient is φ = 243031132348.

The previous prime is 243031132321. The next prime is 243031132361. The reversal of 243031132349 is 943231130342.

243031132349 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., 214964831449 + 28066300900 = 463643^2 + 167530^2 .

It is a cyclic number.

It is not a de Polignac number, because 243031132349 - 2³² = 238736165053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243031132369) 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, 121515566174 + 121515566175.

It is an arithmetic number, because the mean of its divisors is an integer number (121515566175).

Almost surely, 2^243031132349 is an apocalyptic number.

It is an amenable number.

243031132349 is a deficient number, since it is larger than the sum of its proper divisors (1).

243031132349 is an equidigital number, since it uses as much as digits as its factorization.

243031132349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 243031132349 in words is "two hundred forty-three billion, thirty-one million, one hundred thirty-two thousand, three hundred forty-nine".