121444211243 has 2 divisors, whose sum is σ = 121444211244. Its totient is φ = 121444211242.

The previous prime is 121444211221. The next prime is 121444211257. The reversal of 121444211243 is 342112444121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121444211243 - 2³⁰ = 120370469419 is a prime.

It is not a weakly prime, because it can be changed into another prime (121444211443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60722105621 + 60722105622.

It is an arithmetic number, because the mean of its divisors is an integer number (60722105622).

Almost surely, 2^121444211243 is an apocalyptic number.

121444211243 is a deficient number, since it is larger than the sum of its proper divisors (1).

121444211243 is an equidigital number, since it uses as much as digits as its factorization.

121444211243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 29.

Adding to 121444211243 its reverse (342112444121), we get a palindrome (463556655364).

The spelling of 121444211243 in words is "one hundred twenty-one billion, four hundred forty-four million, two hundred eleven thousand, two hundred forty-three".