1123021112 has 16 divisors (see below), whose sum is σ = 2106020400. Its totient is φ = 561415680.

The previous prime is 1123021111. The next prime is 1123021127. The reversal of 1123021112 is 2111203211.

It is a super-2 number, since 2×1123021112² = 2522352835995433088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84437 + ... + 96827.

It is an arithmetic number, because the mean of its divisors is an integer number (131626275).

Almost surely, 2^1123021112 is an apocalyptic number.

It is an amenable number.

1123021112 is a deficient number, since it is larger than the sum of its proper divisors (982999288).

1123021112 is a wasteful number, since it uses less digits than its factorization.

1123021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23726 (or 23722 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1123021112 is about 33511.5071579898. The cubic root of 1123021112 is about 1039.4317383719.

Adding to 1123021112 its reverse (2111203211), we get a palindrome (3234224323).

The spelling of 1123021112 in words is "one billion, one hundred twenty-three million, twenty-one thousand, one hundred twelve".