12113122123 has 16 divisors (see below), whose sum is σ = 12856890816. Its totient is φ = 11396367360.

The previous prime is 12113122103. The next prime is 12113122127. The reversal of 12113122123 is 32122131121.

It is a cyclic number.

It is not a de Polignac number, because 12113122123 - 2³³ = 3523187531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12113122123.

It is not an unprimeable number, because it can be changed into a prime (12113122127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136090 + ... + 206752.

It is an arithmetic number, because the mean of its divisors is an integer number (803555676).

Almost surely, 2^12113122123 is an apocalyptic number.

12113122123 is a deficient number, since it is larger than the sum of its proper divisors (743768693).

12113122123 is a wasteful number, since it uses less digits than its factorization.

12113122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70854.

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

Adding to 12113122123 its reverse (32122131121), we get a palindrome (44235253244).

The spelling of 12113122123 in words is "twelve billion, one hundred thirteen million, one hundred twenty-two thousand, one hundred twenty-three".