13121525706 has 32 divisors (see below), whose sum is σ = 26919613440. Its totient is φ = 4261902576.

The previous prime is 13121525699. The next prime is 13121525707. The reversal of 13121525706 is 60752512131.

13121525706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13121525707) 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 15 ways as a sum of consecutive naturals, for example, 38476 + ... + 166503.

It is an arithmetic number, because the mean of its divisors is an integer number (841237920).

Almost surely, 2^13121525706 is an apocalyptic number.

13121525706 is an abundant number, since it is smaller than the sum of its proper divisors (13798087734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121525706 is a wasteful number, since it uses less digits than its factorization.

13121525706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205258.

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 13121525706 in words is "thirteen billion, one hundred twenty-one million, five hundred twenty-five thousand, seven hundred six".