1113121033 has 2 divisors, whose sum is σ = 1113121034. Its totient is φ = 1113121032.

The previous prime is 1113121021. The next prime is 1113121043. The reversal of 1113121033 is 3301213111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 962985024 + 150136009 = 31032^2 + 12253^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113121033 - 2¹³ = 1113112841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113120998 and 1113121016.

It is not a weakly prime, because it can be changed into another prime (1113121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556560516 + 556560517.

It is an arithmetic number, because the mean of its divisors is an integer number (556560517).

Almost surely, 2^1113121033 is an apocalyptic number.

It is an amenable number.

1113121033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113121033 is an equidigital number, since it uses as much as digits as its factorization.

1113121033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1113121033 is about 33363.4685397067. The cubic root of 1113121033 is about 1036.3683219154.

Adding to 1113121033 its reverse (3301213111), we get a palindrome (4414334144).

The spelling of 1113121033 in words is "one billion, one hundred thirteen million, one hundred twenty-one thousand, thirty-three".