13812011 has 2 divisors, whose sum is σ = 13812012. Its totient is φ = 13812010.

The previous prime is 13811977. The next prime is 13812017. The reversal of 13812011 is 11021831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13812011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13812017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6906005 + 6906006.

It is an arithmetic number, because the mean of its divisors is an integer number (6906006).

Almost surely, 2^13812011 is an apocalyptic number.

13812011 is a deficient number, since it is larger than the sum of its proper divisors (1).

13812011 is an equidigital number, since it uses as much as digits as its factorization.

13812011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 13812011 is about 3716.4513988481. The cubic root of 13812011 is about 239.9305991462.

Adding to 13812011 its reverse (11021831), we get a palindrome (24833842).

The spelling of 13812011 in words is "thirteen million, eight hundred twelve thousand, eleven".