12347733132 has 144 divisors (see below), whose sum is σ = 37051635712. Its totient is φ = 3392824320.

The previous prime is 12347733109. The next prime is 12347733137. The reversal of 12347733132 is 23133774321.

12347733132 is a `hidden beast` number, since 1 + 23 + 477 + 33 + 132 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (12347733137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1268508 + ... + 1278204.

Almost surely, 2^12347733132 is an apocalyptic number.

12347733132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12347733132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18525817856).

12347733132 is an abundant number, since it is smaller than the sum of its proper divisors (24703902580).

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

12347733132 is a wasteful number, since it uses less digits than its factorization.

12347733132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9908 (or 9903 counting only the distinct ones).

The product of its digits is 63504, while the sum is 36.

The spelling of 12347733132 in words is "twelve billion, three hundred forty-seven million, seven hundred thirty-three thousand, one hundred thirty-two".