13131123032131 has 4 divisors (see below), whose sum is σ = 14141209419232. Its totient is φ = 12121036645032.

The previous prime is 13131123032119. The next prime is 13131123032221. The reversal of 13131123032131 is 13123032113131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13131123032131 - 2⁵ = 13131123032099 is a prime.

It is a super-2 number, since 2×13131123032131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13131123032096 and 13131123032105.

It is not an unprimeable number, because it can be changed into a prime (13131123030131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505043193531 + ... + 505043193556.

It is an arithmetic number, because the mean of its divisors is an integer number (3535302354808).

Almost surely, 2^{13131123032131} is an apocalyptic number.

13131123032131 is a deficient number, since it is larger than the sum of its proper divisors (1010086387101).

13131123032131 is a wasteful number, since it uses less digits than its factorization.

13131123032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010086387100.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 13131123032131 its reverse (13123032113131), we get a palindrome (26254155145262).

The spelling of 13131123032131 in words is "thirteen trillion, one hundred thirty-one billion, one hundred twenty-three million, thirty-two thousand, one hundred thirty-one".