12132423121 has 32 divisors (see below), whose sum is σ = 15248395008. Its totient is φ = 9397969920.

The previous prime is 12132423113. The next prime is 12132423143.

12132423121 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12132423121 - 2³ = 12132423113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12132423092 and 12132423101.

It is not an unprimeable number, because it can be changed into a prime (12132423421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 903426 + ... + 916756.

It is an arithmetic number, because the mean of its divisors is an integer number (476512344).

Almost surely, 2^12132423121 is an apocalyptic number.

It is an amenable number.

12132423121 is a deficient number, since it is larger than the sum of its proper divisors (3115971887).

12132423121 is a wasteful number, since it uses less digits than its factorization.

12132423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13561.

The product of its digits is 576, while the sum is 22.

The spelling of 12132423121 in words is "twelve billion, one hundred thirty-two million, four hundred twenty-three thousand, one hundred twenty-one".