12132231132 has 24 divisors (see below), whose sum is σ = 32352616576. Its totient is φ = 3466351728.

The previous prime is 12132231127. The next prime is 12132231179. The reversal of 12132231132 is 23113223121.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 = 12132231099 and 12132231108.

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, 72215578 + ... + 72215745.

Almost surely, 2^12132231132 is an apocalyptic number.

12132231132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12132231132 is an abundant number, since it is smaller than the sum of its proper divisors (20220385444).

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

12132231132 is a wasteful number, since it uses less digits than its factorization.

12132231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144431337 (or 144431335 counting only the distinct ones).

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

Adding to 12132231132 its reverse (23113223121), we get a palindrome (35245454253).

The spelling of 12132231132 in words is "twelve billion, one hundred thirty-two million, two hundred thirty-one thousand, one hundred thirty-two".