243122050019 has 2 divisors, whose sum is σ = 243122050020. Its totient is φ = 243122050018.

The previous prime is 243122050001. The next prime is 243122050021. The reversal of 243122050019 is 910050221342.

243122050019 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 243122050019 - 2⁸ = 243122049763 is a prime.

It is a super-2 number, since 2×243122050019² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 243122050021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 243122049973 and 243122050000.

It is not a weakly prime, because it can be changed into another prime (243122050079) 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, 121561025009 + 121561025010.

It is an arithmetic number, because the mean of its divisors is an integer number (121561025010).

Almost surely, 2^243122050019 is an apocalyptic number.

243122050019 is a deficient number, since it is larger than the sum of its proper divisors (1).

243122050019 is an equidigital number, since it uses as much as digits as its factorization.

243122050019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 243122050019 in words is "two hundred forty-three billion, one hundred twenty-two million, fifty thousand, nineteen".