12040310121 has 16 divisors (see below), whose sum is σ = 18509506944. Its totient is φ = 6819289344.

The previous prime is 12040310063. The next prime is 12040310123. The reversal of 12040310121 is 12101304021.

12040310121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12040310121 - 2²⁹ = 11503439209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12040310121.

It is not an unprimeable number, because it can be changed into a prime (12040310123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2534566 + ... + 2539311.

It is an arithmetic number, because the mean of its divisors is an integer number (1156844184).

Almost surely, 2^12040310121 is an apocalyptic number.

It is an amenable number.

12040310121 is a deficient number, since it is larger than the sum of its proper divisors (6469196823).

12040310121 is a wasteful number, since it uses less digits than its factorization.

12040310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074000.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12040310121 its reverse (12101304021), we get a palindrome (24141614142).

The spelling of 12040310121 in words is "twelve billion, forty million, three hundred ten thousand, one hundred twenty-one".