12521324011 has 16 divisors (see below), whose sum is σ = 14579034624. Its totient is φ = 10532073024.

The previous prime is 12521324009. The next prime is 12521324021. The reversal of 12521324011 is 11042312521.

It is a cyclic number.

It is not a de Polignac number, because 12521324011 - 2¹ = 12521324009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12521324021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72591 + ... + 174103.

It is an arithmetic number, because the mean of its divisors is an integer number (911189664).

Almost surely, 2^12521324011 is an apocalyptic number.

12521324011 is a deficient number, since it is larger than the sum of its proper divisors (2057710613).

12521324011 is a wasteful number, since it uses less digits than its factorization.

12521324011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101850.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 12521324011 its reverse (11042312521), we get a palindrome (23563636532).

The spelling of 12521324011 in words is "twelve billion, five hundred twenty-one million, three hundred twenty-four thousand, eleven".