123110134112 has 96 divisors (see below), whose sum is σ = 281677777920. Its totient is φ = 51875665920.

The previous prime is 123110134109. The next prime is 123110134123. The reversal of 123110134112 is 211431011321.

It is a super-2 number, since 2×123110134112² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4250303 + ... + 4279169.

It is an arithmetic number, because the mean of its divisors is an integer number (2934143520).

Almost surely, 2^123110134112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123110134112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140838888960).

123110134112 is an abundant number, since it is smaller than the sum of its proper divisors (158567643808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123110134112 is a wasteful number, since it uses less digits than its factorization.

123110134112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29204 (or 29196 counting only the distinct ones).

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

Adding to 123110134112 its reverse (211431011321), we get a palindrome (334541145433).

The spelling of 123110134112 in words is "one hundred twenty-three billion, one hundred ten million, one hundred thirty-four thousand, one hundred twelve".