242111026123 has 2 divisors, whose sum is σ = 242111026124. Its totient is φ = 242111026122.

The previous prime is 242111026121. The next prime is 242111026133. The reversal of 242111026123 is 321620111242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242111026123 - 2¹ = 242111026121 is a prime.

It is a super-2 number, since 2×242111026123² (a number of 24 digits) contains 22 as substring.

Together with 242111026121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (242111026121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121055513061 + 121055513062.

It is an arithmetic number, because the mean of its divisors is an integer number (121055513062).

Almost surely, 2^242111026123 is an apocalyptic number.

242111026123 is a deficient number, since it is larger than the sum of its proper divisors (1).

242111026123 is an equidigital number, since it uses as much as digits as its factorization.

242111026123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 242111026123 its reverse (321620111242), we get a palindrome (563731137365).

The spelling of 242111026123 in words is "two hundred forty-two billion, one hundred eleven million, twenty-six thousand, one hundred twenty-three".