1123044212 has 6 divisors (see below), whose sum is σ = 1965327378. Its totient is φ = 561522104.

The previous prime is 1123044203. The next prime is 1123044233. The reversal of 1123044212 is 2124403211.

It can be written as a sum of positive squares in only one way, i.e., 1121178256 + 1865956 = 33484^2 + 1366^2 .

It is a super-2 number, since 2×1123044212² = 2522456604213401888, 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 as a sum of consecutive naturals, namely, 140380523 + ... + 140380530.

It is an arithmetic number, because the mean of its divisors is an integer number (327554563).

Almost surely, 2^1123044212 is an apocalyptic number.

It is an amenable number.

1123044212 is a deficient number, since it is larger than the sum of its proper divisors (842283166).

1123044212 is a wasteful number, since it uses less digits than its factorization.

1123044212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280761057 (or 280761055 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1123044212 is about 33511.8518139479. The cubic root of 1123044212 is about 1039.4388651921.

Adding to 1123044212 its reverse (2124403211), we get a palindrome (3247447423).

The spelling of 1123044212 in words is "one billion, one hundred twenty-three million, forty-four thousand, two hundred twelve".