12021014423 has 16 divisors (see below), whose sum is σ = 13704408576. Its totient is φ = 10437467040.

The previous prime is 12021014407. The next prime is 12021014441. The reversal of 12021014423 is 32441012021.

12021014423 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 12021014423 - 2⁴ = 12021014407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021014395 and 12021014404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021014443) 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, 136190 + ... + 206372.

It is an arithmetic number, because the mean of its divisors is an integer number (856525536).

Almost surely, 2^12021014423 is an apocalyptic number.

12021014423 is a deficient number, since it is larger than the sum of its proper divisors (1683394153).

12021014423 is a wasteful number, since it uses less digits than its factorization.

12021014423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70894.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12021014423 its reverse (32441012021), we get a palindrome (44462026444).

The spelling of 12021014423 in words is "twelve billion, twenty-one million, fourteen thousand, four hundred twenty-three".