13115112134551 has 64 divisors (see below), whose sum is σ = 16380506419200. Its totient is φ = 10261448354304.

The previous prime is 13115112134533. The next prime is 13115112134557. The reversal of 13115112134551 is 15543121151131.

It is not a de Polignac number, because 13115112134551 - 2¹³ = 13115112126359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13115112134557) 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, 48935725 + ... + 49203001.

It is an arithmetic number, because the mean of its divisors is an integer number (255945412800).

Almost surely, 2^{13115112134551} is an apocalyptic number.

13115112134551 is a deficient number, since it is larger than the sum of its proper divisors (3265394284649).

13115112134551 is a wasteful number, since it uses less digits than its factorization.

13115112134551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267536.

The product of its digits is 9000, while the sum is 34.

Adding to 13115112134551 its reverse (15543121151131), we get a palindrome (28658233285682).

The spelling of 13115112134551 in words is "thirteen trillion, one hundred fifteen billion, one hundred twelve million, one hundred thirty-four thousand, five hundred fifty-one".