12032131121 has 16 divisors (see below), whose sum is σ = 13134076800. Its totient is φ = 10983040128.

The previous prime is 12032131093. The next prime is 12032131147. The reversal of 12032131121 is 12113123021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12032131121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12032131121.

It is not an unprimeable number, because it can be changed into a prime (12032131171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10676 + ... + 155493.

It is an arithmetic number, because the mean of its divisors is an integer number (820879800).

Almost surely, 2^12032131121 is an apocalyptic number.

It is an amenable number.

12032131121 is a deficient number, since it is larger than the sum of its proper divisors (1101945679).

12032131121 is a wasteful number, since it uses less digits than its factorization.

12032131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166328.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12032131121 its reverse (12113123021), we get a palindrome (24145254142).

The spelling of 12032131121 in words is "twelve billion, thirty-two million, one hundred thirty-one thousand, one hundred twenty-one".