13111317651545 has 16 divisors (see below), whose sum is σ = 16241518725120. Its totient is φ = 10150445870400.

The previous prime is 13111317651521. The next prime is 13111317651703. The reversal of 13111317651545 is 54515671311131.

It is not a de Polignac number, because 13111317651545 - 2²² = 13111313457241 is a prime.

It is a super-3 number, since 3×13111317651545³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13111317651496 and 13111317651505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5348816 + ... + 7404894.

It is an arithmetic number, because the mean of its divisors is an integer number (1015094920320).

Almost surely, 2^{13111317651545} is an apocalyptic number.

It is an amenable number.

13111317651545 is a deficient number, since it is larger than the sum of its proper divisors (3130201073575).

13111317651545 is a wasteful number, since it uses less digits than its factorization.

13111317651545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097256.

The product of its digits is 189000, while the sum is 44.

Adding to 13111317651545 its reverse (54515671311131), we get a palindrome (67626988962676).

The spelling of 13111317651545 in words is "thirteen trillion, one hundred eleven billion, three hundred seventeen million, six hundred fifty-one thousand, five hundred forty-five".