12113123122 has 16 divisors (see below), whose sum is σ = 18668692440. Its totient is φ = 5890364928.

The previous prime is 12113123119. The next prime is 12113123131. The reversal of 12113123122 is 22132131121.

It can be written as a sum of positive squares in 4 ways, for example, as 12071636641 + 41486481 = 109871^2 + 6441^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12113123122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146754 + ... + 213922.

Almost surely, 2^12113123122 is an apocalyptic number.

12113123122 is a deficient number, since it is larger than the sum of its proper divisors (6555569318).

12113123122 is a wasteful number, since it uses less digits than its factorization.

12113123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69645.

The product of its digits is 144, while the sum is 19.

Adding to 12113123122 its reverse (22132131121), we get a palindrome (34245254243).

The spelling of 12113123122 in words is "twelve billion, one hundred thirteen million, one hundred twenty-three thousand, one hundred twenty-two".