123441402132 has 72 divisors (see below), whose sum is σ = 326458991040. Its totient is φ = 39254181120.

The previous prime is 123441402131. The next prime is 123441402137. The reversal of 123441402132 is 231204144321.

123441402132 is a `hidden beast` number, since 1 + 2 + 3 + 441 + 4 + 0 + 213 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 123441402096 and 123441402105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123441402131) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 117132 + ... + 510492.

Almost surely, 2^123441402132 is an apocalyptic number.

123441402132 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 123441402132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163229495520).

123441402132 is an abundant number, since it is smaller than the sum of its proper divisors (203017588908).

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

123441402132 is a wasteful number, since it uses less digits than its factorization.

123441402132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393773 (or 393768 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 123441402132 its reverse (231204144321), we get a palindrome (354645546453).

The spelling of 123441402132 in words is "one hundred twenty-three billion, four hundred forty-one million, four hundred two thousand, one hundred thirty-two".