13155205020125 has 64 divisors (see below), whose sum is σ = 19272268694016. Its totient is φ = 8775962841600.

The previous prime is 13155205020031. The next prime is 13155205020127. The reversal of 13155205020125 is 52102050255131.

It is not a de Polignac number, because 13155205020125 - 2¹⁰ = 13155205019101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13155205020091 and 13155205020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155205020127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 431770142 + ... + 431800608.

It is an arithmetic number, because the mean of its divisors is an integer number (301129198344).

Almost surely, 2^{13155205020125} is an apocalyptic number.

It is an amenable number.

13155205020125 is a deficient number, since it is larger than the sum of its proper divisors (6117063673891).

13155205020125 is a wasteful number, since it uses less digits than its factorization.

13155205020125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43863 (or 43853 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 13155205020125 its reverse (52102050255131), we get a palindrome (65257255275256).

The spelling of 13155205020125 in words is "thirteen trillion, one hundred fifty-five billion, two hundred five million, twenty thousand, one hundred twenty-five".