1121231133 has 24 divisors (see below), whose sum is σ = 1825824000. Its totient is φ = 679532040.

The previous prime is 1121231113. The next prime is 1121231143. The reversal of 1121231133 is 3311321211.

It is not a de Polignac number, because 1121231133 - 2⁵ = 1121231101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121231113) 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 in 23 ways as a sum of consecutive naturals, for example, 168333 + ... + 174866.

It is an arithmetic number, because the mean of its divisors is an integer number (76076000).

Almost surely, 2^1121231133 is an apocalyptic number.

It is an amenable number.

1121231133 is a deficient number, since it is larger than the sum of its proper divisors (704592867).

1121231133 is a wasteful number, since it uses less digits than its factorization.

1121231133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343230 (or 343213 counting only the distinct ones).

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

The square root of 1121231133 is about 33484.7895767616. The cubic root of 1121231133 is about 1038.8791959624.

Adding to 1121231133 its reverse (3311321211), we get a palindrome (4432552344).

The spelling of 1121231133 in words is "one billion, one hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty-three".