12523811 has 2 divisors, whose sum is σ = 12523812. Its totient is φ = 12523810.

The previous prime is 12523801. The next prime is 12523829. The reversal of 12523811 is 11832521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (11832521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12523811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12523801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261905 + 6261906.

It is an arithmetic number, because the mean of its divisors is an integer number (6261906).

Almost surely, 2^12523811 is an apocalyptic number.

12523811 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523811 is an equidigital number, since it uses as much as digits as its factorization.

12523811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 23.

The square root of 12523811 is about 3538.8996877561. The cubic root of 12523811 is about 232.2267093734.

The spelling of 12523811 in words is "twelve million, five hundred twenty-three thousand, eight hundred eleven".