12321313404 has 48 divisors (see below), whose sum is σ = 29805726720. Its totient is φ = 3956863680.

The previous prime is 12321313379. The next prime is 12321313423. The reversal of 12321313404 is 40431312321.

It is a happy number.

It is a congruent number.

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, 122889 + ... + 199359.

It is an arithmetic number, because the mean of its divisors is an integer number (620952640).

Almost surely, 2^12321313404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12321313404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14902863360).

12321313404 is an abundant number, since it is smaller than the sum of its proper divisors (17484413316).

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

12321313404 is a wasteful number, since it uses less digits than its factorization.

12321313404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76970 (or 76968 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12321313404 its reverse (40431312321), we get a palindrome (52752625725).

The spelling of 12321313404 in words is "twelve billion, three hundred twenty-one million, three hundred thirteen thousand, four hundred four".