242124004123 has 2 divisors, whose sum is σ = 242124004124. Its totient is φ = 242124004122.

The previous prime is 242124004121. The next prime is 242124004127. The reversal of 242124004123 is 321400421242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242124004123 - 2¹ = 242124004121 is a prime.

Together with 242124004121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (242124004121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121062002061 + 121062002062.

It is an arithmetic number, because the mean of its divisors is an integer number (121062002062).

Almost surely, 2^242124004123 is an apocalyptic number.

242124004123 is a deficient number, since it is larger than the sum of its proper divisors (1).

242124004123 is an equidigital number, since it uses as much as digits as its factorization.

242124004123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 242124004123 its reverse (321400421242), we get a palindrome (563524425365).

The spelling of 242124004123 in words is "two hundred forty-two billion, one hundred twenty-four million, four thousand, one hundred twenty-three".