12521525411 has 4 divisors (see below), whose sum is σ = 12523042872. Its totient is φ = 12520007952.

The previous prime is 12521525371. The next prime is 12521525453. The reversal of 12521525411 is 11452512521.

12521525411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11452512521 = 23 ⋅497935327.

It is a cyclic number.

It is not a de Polignac number, because 12521525411 - 2⁶ = 12521525347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12520525411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746285 + ... + 762878.

It is an arithmetic number, because the mean of its divisors is an integer number (3130760718).

Almost surely, 2^12521525411 is an apocalyptic number.

12521525411 is a deficient number, since it is larger than the sum of its proper divisors (1517461).

12521525411 is an equidigital number, since it uses as much as digits as its factorization.

12521525411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517460.

The product of its digits is 4000, while the sum is 29.

The spelling of 12521525411 in words is "twelve billion, five hundred twenty-one million, five hundred twenty-five thousand, four hundred eleven".