12592504121 has 2 divisors, whose sum is σ = 12592504122. Its totient is φ = 12592504120.

The previous prime is 12592504069. The next prime is 12592504139. The reversal of 12592504121 is 12140529521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12558340096 + 34164025 = 112064^2 + 5845^2 .

It is a cyclic number.

It is not a de Polignac number, because 12592504121 - 2²² = 12588309817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12592504621) 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, 6296252060 + 6296252061.

It is an arithmetic number, because the mean of its divisors is an integer number (6296252061).

Almost surely, 2^12592504121 is an apocalyptic number.

It is an amenable number.

12592504121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12592504121 is an equidigital number, since it uses as much as digits as its factorization.

12592504121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 12592504121 in words is "twelve billion, five hundred ninety-two million, five hundred four thousand, one hundred twenty-one".