13012523 has 2 divisors, whose sum is σ = 13012524. Its totient is φ = 13012522.

The previous prime is 13012499. The next prime is 13012543. The reversal of 13012523 is 32521031.

13012523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (32521031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13012523 - 2¹² = 13008427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13012543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506261 + 6506262.

It is an arithmetic number, because the mean of its divisors is an integer number (6506262).

Almost surely, 2^13012523 is an apocalyptic number.

13012523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13012523 is an equidigital number, since it uses as much as digits as its factorization.

13012523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13012523 is about 3607.2874850779. The cubic root of 13012523 is about 235.2089465009.

Adding to 13012523 its reverse (32521031), we get a palindrome (45533554).

The spelling of 13012523 in words is "thirteen million, twelve thousand, five hundred twenty-three".