12303312132 has 12 divisors (see below), whose sum is σ = 28707728336. Its totient is φ = 4101104040.

The previous prime is 12303312121. The next prime is 12303312137. The reversal of 12303312132 is 23121330321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12303312099 and 12303312108.

It is not an unprimeable number, because it can be changed into a prime (12303312137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512637994 + ... + 512638017.

Almost surely, 2^12303312132 is an apocalyptic number.

12303312132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12303312132 is an abundant number, since it is smaller than the sum of its proper divisors (16404416204).

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

12303312132 is a wasteful number, since it uses less digits than its factorization.

12303312132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025276018 (or 1025276016 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12303312132 its reverse (23121330321), we get a palindrome (35424642453).

The spelling of 12303312132 in words is "twelve billion, three hundred three million, three hundred twelve thousand, one hundred thirty-two".