1113440213 has 2 divisors, whose sum is σ = 1113440214. Its totient is φ = 1113440212.

The previous prime is 1113440203. The next prime is 1113440231. The reversal of 1113440213 is 3120443111.

Together with next prime (1113440231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664763089 + 448677124 = 25783^2 + 21182^2 .

It is an emirp because it is prime and its reverse (3120443111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1113440213 - 2¹² = 1113436117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113440203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556720106 + 556720107.

It is an arithmetic number, because the mean of its divisors is an integer number (556720107).

Almost surely, 2^1113440213 is an apocalyptic number.

It is an amenable number.

1113440213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113440213 is an equidigital number, since it uses as much as digits as its factorization.

1113440213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1113440213 is about 33368.2515724154. The cubic root of 1113440213 is about 1036.4673696737.

Adding to 1113440213 its reverse (3120443111), we get a palindrome (4233883324).

The spelling of 1113440213 in words is "one billion, one hundred thirteen million, four hundred forty thousand, two hundred thirteen".