12132331 has 2 divisors, whose sum is σ = 12132332. Its totient is φ = 12132330.

The previous prime is 12132319. The next prime is 12132349. The reversal of 12132331 is 13323121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12132331 - 2⁵ = 12132299 is a prime.

It is a super-2 number, since 2×12132331² = 294386910987122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12132301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066165 + 6066166.

It is an arithmetic number, because the mean of its divisors is an integer number (6066166).

Almost surely, 2^12132331 is an apocalyptic number.

12132331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132331 is an equidigital number, since it uses as much as digits as its factorization.

12132331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 16.

The square root of 12132331 is about 3483.1495804803. The cubic root of 12132331 is about 229.7813359724.

Adding to 12132331 its reverse (13323121), we get a palindrome (25455452).

The spelling of 12132331 in words is "twelve million, one hundred thirty-two thousand, three hundred thirty-one".