12032032121 has 4 divisors (see below), whose sum is σ = 12032346000. Its totient is φ = 12031718244.

The previous prime is 12032032039. The next prime is 12032032147. The reversal of 12032032121 is 12123023021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12123023021 = 59107 ⋅205103.

It is a cyclic number.

It is not a de Polignac number, because 12032032121 - 2¹⁰ = 12032031097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12032032121.

It is not an unprimeable number, because it can be changed into a prime (12032032721) 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 3 ways as a sum of consecutive naturals, for example, 89891 + ... + 179288.

It is an arithmetic number, because the mean of its divisors is an integer number (3008086500).

Almost surely, 2^12032032121 is an apocalyptic number.

It is an amenable number.

12032032121 is a deficient number, since it is larger than the sum of its proper divisors (313879).

12032032121 is an equidigital number, since it uses as much as digits as its factorization.

12032032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313878.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12032032121 its reverse (12123023021), we get a palindrome (24155055142).

The spelling of 12032032121 in words is "twelve billion, thirty-two million, thirty-two thousand, one hundred twenty-one".