1129268112 has 240 divisors, whose sum is σ = 3659980032. Its totient is φ = 298045440.

The previous prime is 1129268071. The next prime is 1129268113. The reversal of 1129268112 is 2118629211.

It is not an unprimeable number, because it can be changed into a prime (1129268113) 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 47 ways as a sum of consecutive naturals, for example, 2438793 + ... + 2439255.

Almost surely, 2^1129268112 is an apocalyptic number.

1129268112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129268112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829990016).

1129268112 is an abundant number, since it is smaller than the sum of its proper divisors (2530711920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129268112 is a wasteful number, since it uses less digits than its factorization.

1129268112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 553 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 1129268112 is about 33604.5846872120. The cubic root of 1129268112 is about 1041.3555155177.

The spelling of 1129268112 in words is "one billion, one hundred twenty-nine million, two hundred sixty-eight thousand, one hundred twelve".