1121200211273 has 2 divisors, whose sum is σ = 1121200211274. Its totient is φ = 1121200211272.

The previous prime is 1121200211203. The next prime is 1121200211311. The reversal of 1121200211273 is 3721120021211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 740033503504 + 381166707769 = 860252^2 + 617387^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121200211273 - 2¹² = 1121200207177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121200211203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560600105636 + 560600105637.

It is an arithmetic number, because the mean of its divisors is an integer number (560600105637).

Almost surely, 2^{1121200211273} is an apocalyptic number.

It is an amenable number.

1121200211273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121200211273 is an equidigital number, since it uses as much as digits as its factorization.

1121200211273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 1121200211273 its reverse (3721120021211), we get a palindrome (4842320232484).

The spelling of 1121200211273 in words is "one trillion, one hundred twenty-one billion, two hundred million, two hundred eleven thousand, two hundred seventy-three".