12133232412 has 72 divisors (see below), whose sum is σ = 34364969856. Its totient is φ = 3315910752.

The previous prime is 12133232369. The next prime is 12133232417. The reversal of 12133232412 is 21423233121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133232417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435058 + ... + 462105.

It is an arithmetic number, because the mean of its divisors is an integer number (477291248).

Almost surely, 2^12133232412 is an apocalyptic number.

12133232412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12133232412 is an abundant number, since it is smaller than the sum of its proper divisors (22231737444).

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

12133232412 is a wasteful number, since it uses less digits than its factorization.

12133232412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897207 (or 897198 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 12133232412 its reverse (21423233121), we get a palindrome (33556465533).

The spelling of 12133232412 in words is "twelve billion, one hundred thirty-three million, two hundred thirty-two thousand, four hundred twelve".