12132321132 has 12 divisors (see below), whose sum is σ = 28308749336. Its totient is φ = 4044107040.

The previous prime is 12132321121. The next prime is 12132321139. The reversal of 12132321132 is 23112323121.

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

It is a super-2 number, since 2×12132321132² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12132321099 and 12132321108.

It is not an unprimeable number, because it can be changed into a prime (12132321139) 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, 505513369 + ... + 505513392.

Almost surely, 2^12132321132 is an apocalyptic number.

12132321132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12132321132 is an abundant number, since it is smaller than the sum of its proper divisors (16176428204).

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

12132321132 is a wasteful number, since it uses less digits than its factorization.

12132321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011026768 (or 1011026766 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 12132321132 its reverse (23112323121), we get a palindrome (35244644253).

The spelling of 12132321132 in words is "twelve billion, one hundred thirty-two million, three hundred twenty-one thousand, one hundred thirty-two".