1123230212 has 24 divisors (see below), whose sum is σ = 2125737600. Its totient is φ = 516239136.

The previous prime is 1123230211. The next prime is 1123230247. The reversal of 1123230212 is 2120323211.

It is a super-2 number, since 2×1123230212² = 2523292218299129888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123230211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32762 + ... + 57617.

It is an arithmetic number, because the mean of its divisors is an integer number (88572400).

Almost surely, 2^1123230212 is an apocalyptic number.

It is an amenable number.

1123230212 is a deficient number, since it is larger than the sum of its proper divisors (1002507388).

1123230212 is a wasteful number, since it uses less digits than its factorization.

1123230212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90635 (or 90633 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1123230212 is about 33514.6268366515. The cubic root of 1123230212 is about 1039.4962464166.

Adding to 1123230212 its reverse (2120323211), we get a palindrome (3243553423).

The spelling of 1123230212 in words is "one billion, one hundred twenty-three million, two hundred thirty thousand, two hundred twelve".