12254541211243 has 2 divisors, whose sum is σ = 12254541211244. Its totient is φ = 12254541211242.

The previous prime is 12254541211181. The next prime is 12254541211261. The reversal of 12254541211243 is 34211214545221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12254541211243 is a prime.

It is not a weakly prime, because it can be changed into another prime (12254541211643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6127270605621 + 6127270605622.

It is an arithmetic number, because the mean of its divisors is an integer number (6127270605622).

Almost surely, 2^{12254541211243} is an apocalyptic number.

12254541211243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12254541211243 is an equidigital number, since it uses as much as digits as its factorization.

12254541211243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76800, while the sum is 37.

Adding to 12254541211243 its reverse (34211214545221), we get a palindrome (46465755756464).

The spelling of 12254541211243 in words is "twelve trillion, two hundred fifty-four billion, five hundred forty-one million, two hundred eleven thousand, two hundred forty-three".