1223103443447 has 2 divisors, whose sum is σ = 1223103443448. Its totient is φ = 1223103443446.

The previous prime is 1223103443411. The next prime is 1223103443467. The reversal of 1223103443447 is 7443443013221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223103443447 - 2¹⁶ = 1223103377911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223103443447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223103443407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611551721723 + 611551721724.

It is an arithmetic number, because the mean of its divisors is an integer number (611551721724).

Almost surely, 2^{1223103443447} is an apocalyptic number.

1223103443447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223103443447 is an equidigital number, since it uses as much as digits as its factorization.

1223103443447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 38.

Adding to 1223103443447 its reverse (7443443013221), we get a palindrome (8666546456668).

The spelling of 1223103443447 in words is "one trillion, two hundred twenty-three billion, one hundred three million, four hundred forty-three thousand, four hundred forty-seven".