12523111 has 2 divisors, whose sum is σ = 12523112. Its totient is φ = 12523110.

The previous prime is 12523097. The next prime is 12523129. The reversal of 12523111 is 11132521.

It is a weak prime.

It is an emirp because it is prime and its reverse (11132521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12523111 - 2⁹ = 12522599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12523151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261555 + 6261556.

It is an arithmetic number, because the mean of its divisors is an integer number (6261556).

Almost surely, 2^12523111 is an apocalyptic number.

12523111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523111 is an equidigital number, since it uses as much as digits as its factorization.

12523111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60, while the sum is 16.

The square root of 12523111 is about 3538.8007855769. The cubic root of 12523111 is about 232.2223826360. Note that the first 3 decimals are identical.

Adding to 12523111 its reverse (11132521), we get a palindrome (23655632).

The spelling of 12523111 in words is "twelve million, five hundred twenty-three thousand, one hundred eleven".