1123130212 has 24 divisors (see below), whose sum is σ = 2042933760. Its totient is φ = 539619360.

The previous prime is 1123130207. The next prime is 1123130213. The reversal of 1123130212 is 2120313211.

It is a super-2 number, since 2×1123130212² = 2522842946214329888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123130213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533 + ... + 47419.

It is an arithmetic number, because the mean of its divisors is an integer number (85122240).

Almost surely, 2^1123130212 is an apocalyptic number.

It is an amenable number.

1123130212 is a deficient number, since it is larger than the sum of its proper divisors (919803548).

1123130212 is a wasteful number, since it uses less digits than its factorization.

1123130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46131 (or 46129 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1123130212 is about 33513.1349175215. The cubic root of 1123130212 is about 1039.4653970833.

Adding to 1123130212 its reverse (2120313211), we get a palindrome (3243443423).

The spelling of 1123130212 in words is "one billion, one hundred twenty-three million, one hundred thirty thousand, two hundred twelve".