242120121343 has 24 divisors (see below), whose sum is σ = 260877518528. Its totient is φ = 224623466496.

The previous prime is 242120121323. The next prime is 242120121359. The reversal of 242120121343 is 343121021242.

It is not a de Polignac number, because 242120121343 - 2⁵ = 242120121311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242120121323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70525555 + ... + 70528987.

Almost surely, 2^242120121343 is an apocalyptic number.

242120121343 is a deficient number, since it is larger than the sum of its proper divisors (18757397185).

242120121343 is a wasteful number, since it uses less digits than its factorization.

242120121343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6883 (or 6866 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 242120121343 its reverse (343121021242), we get a palindrome (585241142585).

The spelling of 242120121343 in words is "two hundred forty-two billion, one hundred twenty million, one hundred twenty-one thousand, three hundred forty-three".