12015434401 has 4 divisors (see below), whose sum is σ = 12294863152. Its totient is φ = 11736005652.

The previous prime is 12015434371. The next prime is 12015434407. The reversal of 12015434401 is 10443451021.

12015434401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12015434401 - 2¹¹ = 12015432353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12015434407) 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 3 ways as a sum of consecutive naturals, for example, 139714311 + ... + 139714396.

It is an arithmetic number, because the mean of its divisors is an integer number (3073715788).

Almost surely, 2^12015434401 is an apocalyptic number.

It is an amenable number.

12015434401 is a deficient number, since it is larger than the sum of its proper divisors (279428751).

12015434401 is an equidigital number, since it uses as much as digits as its factorization.

12015434401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279428750.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12015434401 its reverse (10443451021), we get a palindrome (22458885422).

The spelling of 12015434401 in words is "twelve billion, fifteen million, four hundred thirty-four thousand, four hundred one".