12321000412 has 30 divisors (see below), whose sum is σ = 25153898728. Its totient is φ = 5280424632.

The previous prime is 12321000343. The next prime is 12321000421. The reversal of 12321000412 is 21400012321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 631848 + ... + 651055.

Almost surely, 2^12321000412 is an apocalyptic number.

It is an amenable number.

12321000412 is an abundant number, since it is smaller than the sum of its proper divisors (12832898316).

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

12321000412 is an equidigital number, since it uses as much as digits as its factorization.

12321000412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282935 (or 1282912 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12321000412 its reverse (21400012321), we get a palindrome (33721012733).

The spelling of 12321000412 in words is "twelve billion, three hundred twenty-one million, four hundred twelve", and thus it is an aban number.