12032131 has 4 divisors (see below), whose sum is σ = 12311992. Its totient is φ = 11752272.

The previous prime is 12032089. The next prime is 12032143. The reversal of 12032131 is 13123021.

12032131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12032131 - 2⁹ = 12031619 is a prime.

It is a super-2 number, since 2×12032131² = 289544352802322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12032191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139866 + ... + 139951.

It is an arithmetic number, because the mean of its divisors is an integer number (3077998).

Almost surely, 2^12032131 is an apocalyptic number.

12032131 is a deficient number, since it is larger than the sum of its proper divisors (279861).

12032131 is an equidigital number, since it uses as much as digits as its factorization.

12032131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279860.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12032131 is about 3468.7362251979. The cubic root of 12032131 is about 229.1470042561.

Adding to 12032131 its reverse (13123021), we get a palindrome (25155152).

The spelling of 12032131 in words is "twelve million, thirty-two thousand, one hundred thirty-one".