1123133311 has 4 divisors (see below), whose sum is σ = 1133629992. Its totient is φ = 1112636632.

The previous prime is 1123133273. The next prime is 1123133351. The reversal of 1123133311 is 1133313211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123133311 - 2⁷ = 1123133183 is a prime.

It is a super-2 number, since 2×1123133311² = 2522856868555645442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123133351) 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 3 ways as a sum of consecutive naturals, for example, 5248180 + ... + 5248393.

It is an arithmetic number, because the mean of its divisors is an integer number (283407498).

Almost surely, 2^1123133311 is an apocalyptic number.

1123133311 is a deficient number, since it is larger than the sum of its proper divisors (10496681).

1123133311 is a wasteful number, since it uses less digits than its factorization.

1123133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10496680.

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

The square root of 1123133311 is about 33513.1811530926. The cubic root of 1123133311 is about 1039.4663531316.

Adding to 1123133311 its reverse (1133313211), we get a palindrome (2256446522).

The spelling of 1123133311 in words is "one billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred eleven".