243121032379 has 2 divisors, whose sum is σ = 243121032380. Its totient is φ = 243121032378.

The previous prime is 243121032313. The next prime is 243121032389. The reversal of 243121032379 is 973230121342.

243121032379 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 is a cyclic number.

It is not a de Polignac number, because 243121032379 - 2⁷ = 243121032251 is a prime.

It is not a weakly prime, because it can be changed into another prime (243121032389) 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, 121560516189 + 121560516190.

It is an arithmetic number, because the mean of its divisors is an integer number (121560516190).

Almost surely, 2^243121032379 is an apocalyptic number.

243121032379 is a deficient number, since it is larger than the sum of its proper divisors (1).

243121032379 is an equidigital number, since it uses as much as digits as its factorization.

243121032379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 243121032379 in words is "two hundred forty-three billion, one hundred twenty-one million, thirty-two thousand, three hundred seventy-nine".