1123251112 has 16 divisors (see below), whose sum is σ = 2109656340. Its totient is φ = 560676096.

The previous prime is 1123251109. The next prime is 1123251131. The reversal of 1123251112 is 2111523211.

It can be written as a sum of positive squares in 2 ways, for example, as 1122652036 + 599076 = 33506^2 + 774^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1123251112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113643 + ... + 123130.

Almost surely, 2^1123251112 is an apocalyptic number.

It is an amenable number.

1123251112 is a deficient number, since it is larger than the sum of its proper divisors (986405228).

1123251112 is a wasteful number, since it uses less digits than its factorization.

1123251112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237372 (or 237368 counting only the distinct ones).

The product of its digits is 120, while the sum is 19.

The square root of 1123251112 is about 33514.9386393590. The cubic root of 1123251112 is about 1039.5026936960.

Adding to 1123251112 its reverse (2111523211), we get a palindrome (3234774323).

The spelling of 1123251112 in words is "one billion, one hundred twenty-three million, two hundred fifty-one thousand, one hundred twelve".