1123263112 has 16 divisors (see below), whose sum is σ = 2106549900. Its totient is φ = 561516480.

The previous prime is 1123263103. The next prime is 1123263139. The reversal of 1123263112 is 2113623211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1094683396 + 28579716 = 33086^2 + 5346^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 38562 + ... + 61102.

Almost surely, 2^1123263112 is an apocalyptic number.

It is an amenable number.

1123263112 is a deficient number, since it is larger than the sum of its proper divisors (983286788).

1123263112 is a wasteful number, since it uses less digits than its factorization.

1123263112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28776 (or 28772 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 1123263112 is about 33515.1176635261. The cubic root of 1123263112 is about 1039.5063954470.

Adding to 1123263112 its reverse (2113623211), we get a palindrome (3236886323).

The spelling of 1123263112 in words is "one billion, one hundred twenty-three million, two hundred sixty-three thousand, one hundred twelve".