1211103322243 has 2 divisors, whose sum is σ = 1211103322244. Its totient is φ = 1211103322242.

The previous prime is 1211103322213. The next prime is 1211103322259. The reversal of 1211103322243 is 3422233011121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211103322243 - 2²⁹ = 1210566451331 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211103322213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605551661121 + 605551661122.

It is an arithmetic number, because the mean of its divisors is an integer number (605551661122).

Almost surely, 2^{1211103322243} is an apocalyptic number.

1211103322243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211103322243 is an equidigital number, since it uses as much as digits as its factorization.

1211103322243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1211103322243 its reverse (3422233011121), we get a palindrome (4633336333364).

The spelling of 1211103322243 in words is "one trillion, two hundred eleven billion, one hundred three million, three hundred twenty-two thousand, two hundred forty-three".