12016831 has 2 divisors, whose sum is σ = 12016832. Its totient is φ = 12016830.

The previous prime is 12016811. The next prime is 12016859. The reversal of 12016831 is 13861021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12016831 - 2⁵ = 12016799 is a prime.

It is a super-2 number, since 2×12016831² = 288808454565122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12016811) 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, 6008415 + 6008416.

It is an arithmetic number, because the mean of its divisors is an integer number (6008416).

Almost surely, 2^12016831 is an apocalyptic number.

12016831 is a deficient number, since it is larger than the sum of its proper divisors (1).

12016831 is an equidigital number, since it uses as much as digits as its factorization.

12016831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 12016831 is about 3466.5301094899. The cubic root of 12016831 is about 229.0498356480.

Adding to 12016831 its reverse (13861021), we get a palindrome (25877852).

The spelling of 12016831 in words is "twelve million, sixteen thousand, eight hundred thirty-one".