13131511040125 has 16 divisors (see below), whose sum is σ = 16427052508464. Its totient is φ = 10480255800000.

The previous prime is 13131511040107. The next prime is 13131511040161. The reversal of 13131511040125 is 52104011513131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5137851822489 + 7993659217636 = 2266683^2 + 2827306^2 .

It is not a de Polignac number, because 13131511040125 - 2³⁹ = 12581755226237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13131511040093 and 13131511040102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124712326 + ... + 124817575.

It is an arithmetic number, because the mean of its divisors is an integer number (1026690781779).

Almost surely, 2^{13131511040125} is an apocalyptic number.

It is an amenable number.

13131511040125 is a deficient number, since it is larger than the sum of its proper divisors (3295541468339).

13131511040125 is an equidigital number, since it uses as much as digits as its factorization.

13131511040125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249530337 (or 249530327 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 13131511040125 its reverse (52104011513131), we get a palindrome (65235522553256).

The spelling of 13131511040125 in words is "thirteen trillion, one hundred thirty-one billion, five hundred eleven million, forty thousand, one hundred twenty-five".