12134145021 has 8 divisors (see below), whose sum is σ = 16406731584. Its totient is φ = 7975494240.

The previous prime is 12134145019. The next prime is 12134145041. The reversal of 12134145021 is 12054143121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12134145021 - 2¹ = 12134145019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12134144982 and 12134145000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134145041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28483696 + ... + 28484121.

It is an arithmetic number, because the mean of its divisors is an integer number (2050841448).

Almost surely, 2^12134145021 is an apocalyptic number.

It is an amenable number.

12134145021 is a deficient number, since it is larger than the sum of its proper divisors (4272586563).

12134145021 is an equidigital number, since it uses as much as digits as its factorization.

12134145021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56967891.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12134145021 its reverse (12054143121), we get a palindrome (24188288142).

The spelling of 12134145021 in words is "twelve billion, one hundred thirty-four million, one hundred forty-five thousand, twenty-one".