12004331020 has 96 divisors (see below), whose sum is σ = 27814752000. Its totient is φ = 4315680000.

The previous prime is 12004331011. The next prime is 12004331039. The reversal of 12004331020 is 2013340021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12004330985 and 12004331003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8227051 + ... + 8228509.

It is an arithmetic number, because the mean of its divisors is an integer number (289737000).

Almost surely, 2^12004331020 is an apocalyptic number.

12004331020 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 12004331020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13907376000).

12004331020 is an abundant number, since it is smaller than the sum of its proper divisors (15810420980).

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

12004331020 is a wasteful number, since it uses less digits than its factorization.

12004331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12004331020 its reverse (2013340021), we get a palindrome (14017671041).

Subtracting from 12004331020 its reverse (2013340021), we obtain a palindrome (9990990999).

The spelling of 12004331020 in words is "twelve billion, four million, three hundred thirty-one thousand, twenty".