1123310212 has 6 divisors (see below), whose sum is σ = 1965792878. Its totient is φ = 561655104.

The previous prime is 1123310147. The next prime is 1123310213. The reversal of 1123310212 is 2120133211.

It can be written as a sum of positive squares in only one way, i.e., 872847936 + 250462276 = 29544^2 + 15826^2 .

It is not an unprimeable number, because it can be changed into a prime (1123310213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140413773 + ... + 140413780.

Almost surely, 2^1123310212 is an apocalyptic number.

It is an amenable number.

1123310212 is a deficient number, since it is larger than the sum of its proper divisors (842482666).

1123310212 is a wasteful number, since it uses less digits than its factorization.

1123310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280827557 (or 280827555 counting only the distinct ones).

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

The square root of 1123310212 is about 33515.8203241395. The cubic root of 1123310212 is about 1039.5209245650.

Adding to 1123310212 its reverse (2120133211), we get a palindrome (3243443423).

The spelling of 1123310212 in words is "one billion, one hundred twenty-three million, three hundred ten thousand, two hundred twelve".