243120425293 has 2 divisors, whose sum is σ = 243120425294. Its totient is φ = 243120425292.

The previous prime is 243120425287. The next prime is 243120425341. The reversal of 243120425293 is 392524021342.

243120425293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183241356489 + 59879068804 = 428067^2 + 244702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243120425293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243120425263) 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, 121560212646 + 121560212647.

It is an arithmetic number, because the mean of its divisors is an integer number (121560212647).

Almost surely, 2^243120425293 is an apocalyptic number.

It is an amenable number.

243120425293 is a deficient number, since it is larger than the sum of its proper divisors (1).

243120425293 is an equidigital number, since it uses as much as digits as its factorization.

243120425293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 243120425293 in words is "two hundred forty-three billion, one hundred twenty million, four hundred twenty-five thousand, two hundred ninety-three".