1113113321 has 2 divisors, whose sum is σ = 1113113322. Its totient is φ = 1113113320.

The previous prime is 1113113297. The next prime is 1113113357. The reversal of 1113113321 is 1233113111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1094286400 + 18826921 = 33080^2 + 4339^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113113321 - 2²⁶ = 1046004457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113113321.

It is not a weakly prime, because it can be changed into another prime (1113110321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556556660 + 556556661.

It is an arithmetic number, because the mean of its divisors is an integer number (556556661).

Almost surely, 2^1113113321 is an apocalyptic number.

It is an amenable number.

1113113321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113113321 is an equidigital number, since it uses as much as digits as its factorization.

1113113321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54, while the sum is 17.

The square root of 1113113321 is about 33363.3529639933. The cubic root of 1113113321 is about 1036.3659284976.

Adding to 1113113321 its reverse (1233113111), we get a palindrome (2346226432).

The spelling of 1113113321 in words is "one billion, one hundred thirteen million, one hundred thirteen thousand, three hundred twenty-one".