123113140112 has 20 divisors (see below), whose sum is σ = 239126563596. Its totient is φ = 61403059200.

The previous prime is 123113140093. The next prime is 123113140121. The reversal of 123113140112 is 211041311321.

It can be written as a sum of positive squares in 2 ways, for example, as 104512544656 + 18600595456 = 323284^2 + 136384^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9587813 + ... + 9600644.

Almost surely, 2^123113140112 is an apocalyptic number.

It is an amenable number.

123113140112 is a deficient number, since it is larger than the sum of its proper divisors (116013423484).

123113140112 is a wasteful number, since it uses less digits than its factorization.

123113140112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19188866 (or 19188860 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 123113140112 its reverse (211041311321), we get a palindrome (334154451433).

The spelling of 123113140112 in words is "one hundred twenty-three billion, one hundred thirteen million, one hundred forty thousand, one hundred twelve".