1123611212 has 12 divisors (see below), whose sum is σ = 1966555920. Its totient is φ = 561738096.

The previous prime is 1123611193. The next prime is 1123611217. The reversal of 1123611212 is 2121163211.

It is not an unprimeable number, because it can be changed into a prime (1123611217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50114 + ... + 68982.

It is an arithmetic number, because the mean of its divisors is an integer number (163879660).

Almost surely, 2^1123611212 is an apocalyptic number.

It is an amenable number.

1123611212 is a deficient number, since it is larger than the sum of its proper divisors (842944708).

1123611212 is a wasteful number, since it uses less digits than its factorization.

1123611212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33760 (or 33758 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 1123611212 is about 33520.3104400899. The cubic root of 1123611212 is about 1039.6137656020.

Adding to 1123611212 its reverse (2121163211), we get a palindrome (3244774423).

The spelling of 1123611212 in words is "one billion, one hundred twenty-three million, six hundred eleven thousand, two hundred twelve".