12028305018 has 32 divisors (see below), whose sum is σ = 25477395264. Its totient is φ = 3772742912.

The previous prime is 12028305011. The next prime is 12028305049. The reversal of 12028305018 is 81050382021.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12028305011) 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, 572821 + ... + 593447.

It is an arithmetic number, because the mean of its divisors is an integer number (796168602).

Almost surely, 2^12028305018 is an apocalyptic number.

12028305018 is an abundant number, since it is smaller than the sum of its proper divisors (13449090246).

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

12028305018 is a wasteful number, since it uses less digits than its factorization.

12028305018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26366.

The product of its (nonzero) digits is 3840, while the sum is 30.

Adding to 12028305018 its reverse (81050382021), we get a palindrome (93078687039).

The spelling of 12028305018 in words is "twelve billion, twenty-eight million, three hundred five thousand, eighteen".