13212523 has 2 divisors, whose sum is σ = 13212524. Its totient is φ = 13212522.

The previous prime is 13212491. The next prime is 13212533. The reversal of 13212523 is 32521231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13212523 - 2⁵ = 13212491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13212523.

It is not a weakly prime, because it can be changed into another prime (13212533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606261 + 6606262.

It is an arithmetic number, because the mean of its divisors is an integer number (6606262).

Almost surely, 2^13212523 is an apocalyptic number.

13212523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212523 is an equidigital number, since it uses as much as digits as its factorization.

13212523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 19.

The square root of 13212523 is about 3634.9034375070. The cubic root of 13212523 is about 236.4078638459.

Adding to 13212523 its reverse (32521231), we get a palindrome (45733754).

It can be divided in two parts, 1321 and 2523, that added together give a square (3844 = 62²).

The spelling of 13212523 in words is "thirteen million, two hundred twelve thousand, five hundred twenty-three".