123310110132 has 96 divisors (see below), whose sum is σ = 350113760640. Its totient is φ = 37221212160.

The previous prime is 123310110073. The next prime is 123310110137. The reversal of 123310110132 is 231011013321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123310110137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103378 + ... + 507254.

It is an arithmetic number, because the mean of its divisors is an integer number (3647018340).

Almost surely, 2^123310110132 is an apocalyptic number.

123310110132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123310110132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175056880320).

123310110132 is an abundant number, since it is smaller than the sum of its proper divisors (226803650508).

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

123310110132 is a wasteful number, since it uses less digits than its factorization.

123310110132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404158 (or 404150 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123310110132 its reverse (231011013321), we get a palindrome (354321123453).

The spelling of 123310110132 in words is "one hundred twenty-three billion, three hundred ten million, one hundred ten thousand, one hundred thirty-two".