1135443321 has 12 divisors (see below), whose sum is σ = 1641360448. Its totient is φ = 756373464.

The previous prime is 1135443307. The next prime is 1135443341. The reversal of 1135443321 is 1233445311.

It is a happy number.

1135443321 is a `hidden beast` number, since 113 + 544 + 3 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 1135443321 - 2⁹ = 1135442809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135443341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36685 + ... + 60138.

Almost surely, 2^1135443321 is an apocalyptic number.

It is an amenable number.

1135443321 is a deficient number, since it is larger than the sum of its proper divisors (505917127).

1135443321 is a wasteful number, since it uses less digits than its factorization.

1135443321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98132 (or 98129 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1135443321 is about 33696.3398754227. The cubic root of 1135443321 is about 1043.2502240878.

Adding to 1135443321 its reverse (1233445311), we get a palindrome (2368888632).

The spelling of 1135443321 in words is "one billion, one hundred thirty-five million, four hundred forty-three thousand, three hundred twenty-one".