12131023121013 has 16 divisors (see below), whose sum is σ = 16217324476416. Its totient is φ = 8066036287680.

The previous prime is 12131023120939. The next prime is 12131023121017. The reversal of 12131023121013 is 31012132013121.

12131023121013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12131023121013 - 2¹⁷ = 12131022989941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131023121017) 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, 58722243 + ... + 58928463.

It is an arithmetic number, because the mean of its divisors is an integer number (1013582779776).

Almost surely, 2^{12131023121013} is an apocalyptic number.

It is an amenable number.

12131023121013 is a deficient number, since it is larger than the sum of its proper divisors (4086301355403).

12131023121013 is a wasteful number, since it uses less digits than its factorization.

12131023121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257804.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12131023121013 its reverse (31012132013121), we get a palindrome (43143155134134).

The spelling of 12131023121013 in words is "twelve trillion, one hundred thirty-one billion, twenty-three million, one hundred twenty-one thousand, thirteen".