12040304320 has 112 divisors (see below), whose sum is σ = 31517392896. Its totient is φ = 4344704000.

The previous prime is 12040304317. The next prime is 12040304323. The reversal of 12040304320 is 2340304021.

It is an interprime number because it is at equal distance from previous prime (12040304317) and next prime (12040304323).

It is not an unprimeable number, because it can be changed into a prime (12040304323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448065 + ... + 474175.

Almost surely, 2^12040304320 is an apocalyptic number.

12040304320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12040304320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15758696448).

12040304320 is an abundant number, since it is smaller than the sum of its proper divisors (19477088576).

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

12040304320 is a wasteful number, since it uses less digits than its factorization.

12040304320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270 (or 26260 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12040304320 its reverse (2340304021), we get a palindrome (14380608341).

The spelling of 12040304320 in words is "twelve billion, forty million, three hundred four thousand, three hundred twenty".