12032331 has 4 divisors (see below), whose sum is σ = 16043112. Its totient is φ = 8021552.

The previous prime is 12032327. The next prime is 12032333. The reversal of 12032331 is 13323021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13323021 = 3 ⋅4441007.

It is a cyclic number.

It is not a de Polignac number, because 12032331 - 2² = 12032327 is a prime.

It is a super-2 number, since 2×12032331² = 289553978587122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12032331.

It is not an unprimeable number, because it can be changed into a prime (12032333) 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, 2005386 + ... + 2005391.

It is an arithmetic number, because the mean of its divisors is an integer number (4010778).

Almost surely, 2^12032331 is an apocalyptic number.

12032331 is a deficient number, since it is larger than the sum of its proper divisors (4010781).

12032331 is an equidigital number, since it uses as much as digits as its factorization.

12032331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010780.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12032331 is about 3468.7650540214. The cubic root of 12032331 is about 229.1482738884.

Adding to 12032331 its reverse (13323021), we get a palindrome (25355352).

The spelling of 12032331 in words is "twelve million, thirty-two thousand, three hundred thirty-one".