1133321121 has 12 divisors (see below), whose sum is σ = 1638367380. Its totient is φ = 754925280.

The previous prime is 1133321117. The next prime is 1133321149. The reversal of 1133321121 is 1211233311.

It can be written as a sum of positive squares in 2 ways, for example, as 599711121 + 533610000 = 24489^2 + 23100^2 .

It is not a de Polignac number, because 1133321121 - 2² = 1133321117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1133321094 and 1133321103.

It is not an unprimeable number, because it can be changed into a prime (1133321191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40170 + ... + 62291.

It is an arithmetic number, because the mean of its divisors is an integer number (136530615).

Almost surely, 2^1133321121 is an apocalyptic number.

It is an amenable number.

1133321121 is a deficient number, since it is larger than the sum of its proper divisors (505046259).

1133321121 is a wasteful number, since it uses less digits than its factorization.

1133321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103696 (or 103693 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 1133321121 is about 33664.8350805406. The cubic root of 1133321121 is about 1042.5998565564.

Adding to 1133321121 its reverse (1211233311), we get a palindrome (2344554432).

The spelling of 1133321121 in words is "one billion, one hundred thirty-three million, three hundred twenty-one thousand, one hundred twenty-one".