242440123403111 has 2 divisors, whose sum is σ = 242440123403112. Its totient is φ = 242440123403110.

The previous prime is 242440123403021. The next prime is 242440123403123. The reversal of 242440123403111 is 111304321044242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242440123403111 - 2⁴² = 238042076892007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242440123493111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121220061701555 + 121220061701556.

It is an arithmetic number, because the mean of its divisors is an integer number (121220061701556).

Almost surely, 2^{242440123403111} is an apocalyptic number.

242440123403111 is a deficient number, since it is larger than the sum of its proper divisors (1).

242440123403111 is an equidigital number, since it uses as much as digits as its factorization.

242440123403111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 242440123403111 its reverse (111304321044242), we get a palindrome (353744444447353).

The spelling of 242440123403111 in words is "two hundred forty-two trillion, four hundred forty billion, one hundred twenty-three million, four hundred three thousand, one hundred eleven".