12056811 has 32 divisors (see below), whose sum is σ = 18627840. Its totient is φ = 6873984.

The previous prime is 12056801. The next prime is 12056831. The reversal of 12056811 is 11865021.

It is not a de Polignac number, because 12056811 - 2¹⁰ = 12055787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12056801) 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 in 31 ways as a sum of consecutive naturals, for example, 39120 + ... + 39426.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^12056811 is an apocalyptic number.

12056811 is a deficient number, since it is larger than the sum of its proper divisors (6571029).

12056811 is a wasteful number, since it uses less digits than its factorization.

12056811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 12056811 is about 3472.2918944121. The cubic root of 12056811 is about 229.3035707519.

The spelling of 12056811 in words is "twelve million, fifty-six thousand, eight hundred eleven".