12051811 has 2 divisors, whose sum is σ = 12051812. Its totient is φ = 12051810.

The previous prime is 12051779. The next prime is 12051841. The reversal of 12051811 is 11815021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12051811 - 2⁵ = 12051779 is a prime.

It is a super-2 number, since 2×12051811² = 290492296759442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12051841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6025905 + 6025906.

It is an arithmetic number, because the mean of its divisors is an integer number (6025906).

Almost surely, 2^12051811 is an apocalyptic number.

12051811 is a deficient number, since it is larger than the sum of its proper divisors (1).

12051811 is an equidigital number, since it uses as much as digits as its factorization.

12051811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 12051811 is about 3471.5718341985. The cubic root of 12051811 is about 229.2718687156.

Adding to 12051811 its reverse (11815021), we get a palindrome (23866832).

The spelling of 12051811 in words is "twelve million, fifty-one thousand, eight hundred eleven".