1123203132112 has 20 divisors (see below), whose sum is σ = 2176304447556. Its totient is φ = 561576177920.

The previous prime is 1123203132091. The next prime is 1123203132167. The reversal of 1123203132112 is 2112313023211.

It can be written as a sum of positive squares in 2 ways, for example, as 794672405136 + 328530726976 = 891444^2 + 573176^2 .

It is a congruent number.

It is an unprimeable number.

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, 1219189 + ... + 1932052.

Almost surely, 2^{1123203132112} is an apocalyptic number.

It is an amenable number.

1123203132112 is a deficient number, since it is larger than the sum of its proper divisors (1053101315444).

1123203132112 is a wasteful number, since it uses less digits than its factorization.

1123203132112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173526 (or 3173520 counting only the distinct ones).

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

Adding to 1123203132112 its reverse (2112313023211), we get a palindrome (3235516155323).

The spelling of 1123203132112 in words is "one trillion, one hundred twenty-three billion, two hundred three million, one hundred thirty-two thousand, one hundred twelve".