13215425511543 has 16 divisors (see below), whose sum is σ = 17807367703776. Its totient is φ = 8716935997440.

The previous prime is 13215425511511. The next prime is 13215425511577. The reversal of 13215425511543 is 34511552451231.

It is not a de Polignac number, because 13215425511543 - 2⁵ = 13215425511511 is a prime.

It is a super-2 number, since 2×13215425511543² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13215425511495 and 13215425511504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215425511583) 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, 5553646 + ... + 7567947.

It is an arithmetic number, because the mean of its divisors is an integer number (1112960481486).

Almost surely, 2^{13215425511543} is an apocalyptic number.

13215425511543 is a deficient number, since it is larger than the sum of its proper divisors (4591942192233).

13215425511543 is a wasteful number, since it uses less digits than its factorization.

13215425511543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13125154.

The product of its digits is 360000, while the sum is 42.

Adding to 13215425511543 its reverse (34511552451231), we get a palindrome (47726977962774).

The spelling of 13215425511543 in words is "thirteen trillion, two hundred fifteen billion, four hundred twenty-five million, five hundred eleven thousand, five hundred forty-three".