13012534121 has 4 divisors (see below), whose sum is σ = 13329913044. Its totient is φ = 12695155200.

The previous prime is 13012534103. The next prime is 13012534147. The reversal of 13012534121 is 12143521031.

13012534121 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.

It can be written as a sum of positive squares in 2 ways, for example, as 4547614096 + 8464920025 = 67436^2 + 92005^2 .

It is a cyclic number.

It is not a de Polignac number, because 13012534121 - 2¹⁴ = 13012517737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13012534151) 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, 158689400 + ... + 158689481.

It is an arithmetic number, because the mean of its divisors is an integer number (3332478261).

Almost surely, 2^13012534121 is an apocalyptic number.

It is an amenable number.

13012534121 is a deficient number, since it is larger than the sum of its proper divisors (317378923).

13012534121 is an equidigital number, since it uses as much as digits as its factorization.

13012534121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317378922.

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 13012534121 in words is "thirteen billion, twelve million, five hundred thirty-four thousand, one hundred twenty-one".