12442343055551 has 2 divisors, whose sum is σ = 12442343055552. Its totient is φ = 12442343055550.

The previous prime is 12442343055539. The next prime is 12442343055553. The reversal of 12442343055551 is 15555034324421.

It is a happy number.

12442343055551 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 12442343055551 - 2¹⁰ = 12442343054527 is a prime.

It is a super-3 number, since 3×12442343055551³ (a number of 40 digits) contains 333 as substring.

Together with 12442343055553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12442343055553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221171527775 + 6221171527776.

It is an arithmetic number, because the mean of its divisors is an integer number (6221171527776).

Almost surely, 2^{12442343055551} is an apocalyptic number.

12442343055551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12442343055551 is an equidigital number, since it uses as much as digits as its factorization.

12442343055551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 12442343055551 its reverse (15555034324421), we get a palindrome (27997377379972).

The spelling of 12442343055551 in words is "twelve trillion, four hundred forty-two billion, three hundred forty-three million, fifty-five thousand, five hundred fifty-one".