12304320042 has 32 divisors (see below), whose sum is σ = 29093961600. Its totient is φ = 3394294848.

The previous prime is 12304319971. The next prime is 12304320053. The reversal of 12304320042 is 24002340321.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 5049817 + ... + 5052252.

It is an arithmetic number, because the mean of its divisors is an integer number (909186300).

Almost surely, 2^12304320042 is an apocalyptic number.

12304320042 is an abundant number, since it is smaller than the sum of its proper divisors (16789641558).

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

12304320042 is a wasteful number, since it uses less digits than its factorization.

12304320042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102110.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12304320042 its reverse (24002340321), we get a palindrome (36306660363).

The spelling of 12304320042 in words is "twelve billion, three hundred four million, three hundred twenty thousand, forty-two".