12036811 has 4 divisors (see below), whose sum is σ = 12065824. Its totient is φ = 12007800.

The previous prime is 12036809. The next prime is 12036847. The reversal of 12036811 is 11863021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12036811 - 2¹ = 12036809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12036851) 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, 13875 + ... + 14716.

It is an arithmetic number, because the mean of its divisors is an integer number (3016456).

Almost surely, 2^12036811 is an apocalyptic number.

12036811 is a deficient number, since it is larger than the sum of its proper divisors (29013).

12036811 is an equidigital number, since it uses as much as digits as its factorization.

12036811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29012.

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

The square root of 12036811 is about 3469.4107568865. The cubic root of 12036811 is about 229.1767099657.

Adding to 12036811 its reverse (11863021), we get a palindrome (23899832).

The spelling of 12036811 in words is "twelve million, thirty-six thousand, eight hundred eleven".