12134421123 has 8 divisors (see below), whose sum is σ = 17650067136. Its totient is φ = 7354194600.

The previous prime is 12134421107. The next prime is 12134421137. The reversal of 12134421123 is 32112443121.

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

It is not a de Polignac number, because 12134421123 - 2⁴ = 12134421107 is a prime.

It is a super-2 number, since 2×12134421123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12134421093 and 12134421102.

It is not an unprimeable number, because it can be changed into a prime (12134421223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183854833 + ... + 183854898.

It is an arithmetic number, because the mean of its divisors is an integer number (2206258392).

Almost surely, 2^12134421123 is an apocalyptic number.

12134421123 is a deficient number, since it is larger than the sum of its proper divisors (5515646013).

12134421123 is a wasteful number, since it uses less digits than its factorization.

12134421123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367709745.

The product of its digits is 1152, while the sum is 24.

Adding to 12134421123 its reverse (32112443121), we get a palindrome (44246864244).

The spelling of 12134421123 in words is "twelve billion, one hundred thirty-four million, four hundred twenty-one thousand, one hundred twenty-three".