1121311133 has 2 divisors, whose sum is σ = 1121311134. Its totient is φ = 1121311132.

The previous prime is 1121311097. The next prime is 1121311141. The reversal of 1121311133 is 3311131211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000267129 + 121044004 = 31627^2 + 11002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121311133 - 2¹⁰ = 1121310109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121311183) 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, 560655566 + 560655567.

It is an arithmetic number, because the mean of its divisors is an integer number (560655567).

Almost surely, 2^1121311133 is an apocalyptic number.

It is an amenable number.

1121311133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121311133 is an equidigital number, since it uses as much as digits as its factorization.

1121311133 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 1121311133 is about 33485.9841276914. The cubic root of 1121311133 is about 1038.9039034340.

Adding to 1121311133 its reverse (3311131211), we get a palindrome (4432442344).

The spelling of 1121311133 in words is "one billion, one hundred twenty-one million, three hundred eleven thousand, one hundred thirty-three".