1133323121 has 16 divisors (see below), whose sum is σ = 1312754688. Its totient is φ = 958344000.

The previous prime is 1133323099. The next prime is 1133323133. The reversal of 1133323121 is 1213233311.

It is a cyclic number.

It is not a de Polignac number, because 1133323121 - 2⁶ = 1133323057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1133323093 and 1133323102.

It is not an unprimeable number, because it can be changed into a prime (1133323171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204416 + ... + 209886.

It is an arithmetic number, because the mean of its divisors is an integer number (82047168).

Almost surely, 2^1133323121 is an apocalyptic number.

It is an amenable number.

1133323121 is a deficient number, since it is larger than the sum of its proper divisors (179431567).

1133323121 is a wasteful number, since it uses less digits than its factorization.

1133323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872.

The product of its digits is 324, while the sum is 20.

The square root of 1133323121 is about 33664.8647851139. The cubic root of 1133323121 is about 1042.6004698566.

Adding to 1133323121 its reverse (1213233311), we get a palindrome (2346556432).

The spelling of 1133323121 in words is "one billion, one hundred thirty-three million, three hundred twenty-three thousand, one hundred twenty-one".