243120351379 has 2 divisors, whose sum is σ = 243120351380. Its totient is φ = 243120351378.

The previous prime is 243120351343. The next prime is 243120351421. The reversal of 243120351379 is 973153021342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243120351379 - 2¹¹ = 243120349331 is a prime.

It is not a weakly prime, because it can be changed into another prime (243120351319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121560175689 + 121560175690.

It is an arithmetic number, because the mean of its divisors is an integer number (121560175690).

Almost surely, 2^243120351379 is an apocalyptic number.

243120351379 is a deficient number, since it is larger than the sum of its proper divisors (1).

243120351379 is an equidigital number, since it uses as much as digits as its factorization.

243120351379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 243120351379 in words is "two hundred forty-three billion, one hundred twenty million, three hundred fifty-one thousand, three hundred seventy-nine".