12523444067 has 2 divisors, whose sum is σ = 12523444068. Its totient is φ = 12523444066.

The previous prime is 12523444051. The next prime is 12523444121. The reversal of 12523444067 is 76044432521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12523444067 - 2⁴ = 12523444051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12523444067.

It is not a weakly prime, because it can be changed into another prime (12523444007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261722033 + 6261722034.

It is an arithmetic number, because the mean of its divisors is an integer number (6261722034).

Almost surely, 2^12523444067 is an apocalyptic number.

12523444067 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523444067 is an equidigital number, since it uses as much as digits as its factorization.

12523444067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 12523444067 its reverse (76044432521), we get a palindrome (88567876588).

The spelling of 12523444067 in words is "twelve billion, five hundred twenty-three million, four hundred forty-four thousand, sixty-seven".