12031267 has 2 divisors, whose sum is σ = 12031268. Its totient is φ = 12031266.

The previous prime is 12031249. The next prime is 12031273. The reversal of 12031267 is 76213021.

It is a strong prime.

It is an emirp because it is prime and its reverse (76213021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12031267 - 2¹¹ = 12029219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12031247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015633 + 6015634.

It is an arithmetic number, because the mean of its divisors is an integer number (6015634).

Almost surely, 2^12031267 is an apocalyptic number.

12031267 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031267 is an equidigital number, since it uses as much as digits as its factorization.

12031267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12031267 is about 3468.6116819269. The cubic root of 12031267 is about 229.1415192828.

Adding to 12031267 its reverse (76213021), we get a palindrome (88244288).

The spelling of 12031267 in words is "twelve million, thirty-one thousand, two hundred sixty-seven".