1123030112 has 48 divisors (see below), whose sum is σ = 2331282240. Its totient is φ = 531059328.

The previous prime is 1123030061. The next prime is 1123030123. The reversal of 1123030112 is 2110303211.

It is a super-2 number, since 2×1123030112² = 2522393264917465088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477323 + ... + 479669.

It is an arithmetic number, because the mean of its divisors is an integer number (48568380).

Almost surely, 2^1123030112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123030112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165641120).

1123030112 is an abundant number, since it is smaller than the sum of its proper divisors (1208252128).

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

1123030112 is a wasteful number, since it uses less digits than its factorization.

1123030112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1123030112 is about 33511.6414399534. The cubic root of 1123030112 is about 1039.4345150667.

Adding to 1123030112 its reverse (2110303211), we get a palindrome (3233333323).

The spelling of 1123030112 in words is "one billion, one hundred twenty-three million, thirty thousand, one hundred twelve".