1121103212213 has 2 divisors, whose sum is σ = 1121103212214. Its totient is φ = 1121103212212.

The previous prime is 1121103212197. The next prime is 1121103212227. The reversal of 1121103212213 is 3122123011211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 714190629604 + 406912582609 = 845098^2 + 637897^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121103212213 - 2⁴ = 1121103212197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121103212263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560551606106 + 560551606107.

It is an arithmetic number, because the mean of its divisors is an integer number (560551606107).

Almost surely, 2^{1121103212213} is an apocalyptic number.

It is an amenable number.

1121103212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121103212213 is an equidigital number, since it uses as much as digits as its factorization.

1121103212213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1121103212213 its reverse (3122123011211), we get a palindrome (4243226223424).

The spelling of 1121103212213 in words is "one trillion, one hundred twenty-one billion, one hundred three million, two hundred twelve thousand, two hundred thirteen".