12318132 has 24 divisors (see below), whose sum is σ = 30433536. Its totient is φ = 3864448.

The previous prime is 12318109. The next prime is 12318143. The reversal of 12318132 is 23181321.

It is a junction number, because it is equal to n+sod(n) for n = 12318099 and 12318108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29988 + ... + 30395.

It is an arithmetic number, because the mean of its divisors is an integer number (1268064).

Almost surely, 2^12318132 is an apocalyptic number.

12318132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12318132 is an abundant number, since it is smaller than the sum of its proper divisors (18115404).

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

12318132 is a wasteful number, since it uses less digits than its factorization.

12318132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60407 (or 60405 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 12318132 is about 3509.7196469234. The cubic root of 12318132 is about 230.9483964864.

Adding to 12318132 its reverse (23181321), we get a palindrome (35499453).

The spelling of 12318132 in words is "twelve million, three hundred eighteen thousand, one hundred thirty-two".