3121123214243 has 2 divisors, whose sum is σ = 3121123214244. Its totient is φ = 3121123214242.

The previous prime is 3121123214227. The next prime is 3121123214263. The reversal of 3121123214243 is 3424123211213.

It is a happy number.

3121123214243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (3424123211213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3121123214243 - 2⁴ = 3121123214227 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121123214263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560561607121 + 1560561607122.

It is an arithmetic number, because the mean of its divisors is an integer number (1560561607122).

Almost surely, 2^{3121123214243} is an apocalyptic number.

3121123214243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121123214243 is an equidigital number, since it uses as much as digits as its factorization.

3121123214243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

Adding to 3121123214243 its reverse (3424123211213), we get a palindrome (6545246425456).

The spelling of 3121123214243 in words is "three trillion, one hundred twenty-one billion, one hundred twenty-three million, two hundred fourteen thousand, two hundred forty-three".