1121340443173 has 2 divisors, whose sum is σ = 1121340443174. Its totient is φ = 1121340443172.

The previous prime is 1121340443117. The next prime is 1121340443203. The reversal of 1121340443173 is 3713440431211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594869753284 + 526470689889 = 771278^2 + 725583^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121340443173 - 2¹⁷ = 1121340312101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121340413173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560670221586 + 560670221587.

It is an arithmetic number, because the mean of its divisors is an integer number (560670221587).

Almost surely, 2^{1121340443173} is an apocalyptic number.

It is an amenable number.

1121340443173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121340443173 is an equidigital number, since it uses as much as digits as its factorization.

1121340443173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

Adding to 1121340443173 its reverse (3713440431211), we get a palindrome (4834780874384).

The spelling of 1121340443173 in words is "one trillion, one hundred twenty-one billion, three hundred forty million, four hundred forty-three thousand, one hundred seventy-three".