12321213302312 has 64 divisors (see below), whose sum is σ = 24733769472000. Its totient is φ = 5736651028416.

The previous prime is 12321213302303. The next prime is 12321213302327. The reversal of 12321213302312 is 21320331212321.

It is a super-4 number, since 4×12321213302312⁴ (a number of 53 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67590473 + ... + 67772519.

It is an arithmetic number, because the mean of its divisors is an integer number (386465148000).

Almost surely, 2^{12321213302312} is an apocalyptic number.

It is an amenable number.

12321213302312 is an abundant number, since it is smaller than the sum of its proper divisors (12412556169688).

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

12321213302312 is a wasteful number, since it uses less digits than its factorization.

12321213302312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189678 (or 189674 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12321213302312 its reverse (21320331212321), we get a palindrome (33641544514633).

The spelling of 12321213302312 in words is "twelve trillion, three hundred twenty-one billion, two hundred thirteen million, three hundred two thousand, three hundred twelve".