12121143315443 has 2 divisors, whose sum is σ = 12121143315444. Its totient is φ = 12121143315442.

The previous prime is 12121143315431. The next prime is 12121143315451. The reversal of 12121143315443 is 34451334112121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12121143315443 - 2¹⁰ = 12121143314419 is a prime.

It is not a weakly prime, because it can be changed into another prime (12121143315473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060571657721 + 6060571657722.

It is an arithmetic number, because the mean of its divisors is an integer number (6060571657722).

Almost surely, 2^{12121143315443} is an apocalyptic number.

12121143315443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121143315443 is an equidigital number, since it uses as much as digits as its factorization.

12121143315443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

Adding to 12121143315443 its reverse (34451334112121), we get a palindrome (46572477427564).

The spelling of 12121143315443 in words is "twelve trillion, one hundred twenty-one billion, one hundred forty-three million, three hundred fifteen thousand, four hundred forty-three".