12321314016 has 48 divisors (see below), whose sum is σ = 35283765888. Its totient is φ = 3733731200.

The previous prime is 12321314011. The next prime is 12321314017. The reversal of 12321314016 is 61041312321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321314011) 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, 5832900 + ... + 5835011.

It is an arithmetic number, because the mean of its divisors is an integer number (735078456).

Almost surely, 2^12321314016 is an apocalyptic number.

12321314016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12321314016 is an abundant number, since it is smaller than the sum of its proper divisors (22962451872).

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

12321314016 is a wasteful number, since it uses less digits than its factorization.

12321314016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11667935 (or 11667927 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12321314016 its reverse (61041312321), we get a palindrome (73362626337).

The spelling of 12321314016 in words is "twelve billion, three hundred twenty-one million, three hundred fourteen thousand, sixteen".