12433331 has 2 divisors, whose sum is σ = 12433332. Its totient is φ = 12433330.

The previous prime is 12433319. The next prime is 12433339. The reversal of 12433331 is 13333421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12433331 - 2¹⁴ = 12416947 is a prime.

It is a super-2 number, since 2×12433331² = 309175439511122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12433339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216665 + 6216666.

It is an arithmetic number, because the mean of its divisors is an integer number (6216666).

Almost surely, 2^12433331 is an apocalyptic number.

12433331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12433331 is an equidigital number, since it uses as much as digits as its factorization.

12433331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 20.

The square root of 12433331 is about 3526.0928802288. The cubic root of 12433331 is about 231.6661058478. Note that the first 3 decimals are identical.

Adding to 12433331 its reverse (13333421), we get a palindrome (25766752).

The spelling of 12433331 in words is "twelve million, four hundred thirty-three thousand, three hundred thirty-one".