12040040020 has 24 divisors (see below), whose sum is σ = 25287994368. Its totient is φ = 4815271200.

The previous prime is 12040040003. The next prime is 12040040039. The reversal of 12040040020 is 2004004021.

12040040020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96765 + ... + 182875.

It is an arithmetic number, because the mean of its divisors is an integer number (1053666432).

Almost surely, 2^12040040020 is an apocalyptic number.

12040040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12040040020 is an abundant number, since it is smaller than the sum of its proper divisors (13247954348).

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

12040040020 is a wasteful number, since it uses less digits than its factorization.

12040040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93111 (or 93109 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 12040040020 its reverse (2004004021), we get a palindrome (14044044041).

The spelling of 12040040020 in words is "twelve billion, forty million, forty thousand, twenty".