12347325312 has 64 divisors (see below), whose sum is σ = 37482960000. Its totient is φ = 3527806464.

The previous prime is 12347325299. The next prime is 12347325317. The reversal of 12347325312 is 21352374321.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12347325317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294062 + ... + 2299437.

It is an arithmetic number, because the mean of its divisors is an integer number (585671250).

Almost surely, 2^12347325312 is an apocalyptic number.

12347325312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12347325312 is an abundant number, since it is smaller than the sum of its proper divisors (25135634688).

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

12347325312 is an equidigital number, since it uses as much as digits as its factorization.

12347325312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593523 (or 4593511 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

Adding to 12347325312 its reverse (21352374321), we get a palindrome (33699699633).

It can be divided in two parts, 123473 and 25312, that added together give a triangular number (148785 = T₅₄₅).

The spelling of 12347325312 in words is "twelve billion, three hundred forty-seven million, three hundred twenty-five thousand, three hundred twelve".