1133133121 has 2 divisors, whose sum is σ = 1133133122. Its totient is φ = 1133133120.

The previous prime is 1133133109. The next prime is 1133133139. The reversal of 1133133121 is 1213313311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 629759025 + 503374096 = 25095^2 + 22436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133133121 - 2⁷ = 1133132993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1133133161) 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, 566566560 + 566566561.

It is an arithmetic number, because the mean of its divisors is an integer number (566566561).

Almost surely, 2^1133133121 is an apocalyptic number.

It is an amenable number.

1133133121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133133121 is an equidigital number, since it uses as much as digits as its factorization.

1133133121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 19.

The square root of 1133133121 is about 33662.0427336191. The cubic root of 1133133121 is about 1042.5422031080.

Adding to 1133133121 its reverse (1213313311), we get a palindrome (2346446432).

The spelling of 1133133121 in words is "one billion, one hundred thirty-three million, one hundred thirty-three thousand, one hundred twenty-one".