1113321229 has 2 divisors, whose sum is σ = 1113321230. Its totient is φ = 1113321228.

The previous prime is 1113321227. The next prime is 1113321239. The reversal of 1113321229 is 9221233111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 911738025 + 201583204 = 30195^2 + 14198^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113321229 - 2¹ = 1113321227 is a prime.

Together with 1113321227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113321227) 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, 556660614 + 556660615.

It is an arithmetic number, because the mean of its divisors is an integer number (556660615).

Almost surely, 2^1113321229 is an apocalyptic number.

It is an amenable number.

1113321229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113321229 is an equidigital number, since it uses as much as digits as its factorization.

1113321229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 25.

The square root of 1113321229 is about 33366.4686324460. The cubic root of 1113321229 is about 1036.4304488388.

The spelling of 1113321229 in words is "one billion, one hundred thirteen million, three hundred twenty-one thousand, two hundred twenty-nine".