13105004123320 has 32 divisors (see below), whose sum is σ = 29535321327120. Its totient is φ = 5233279507200.

The previous prime is 13105004123249. The next prime is 13105004123339. The reversal of 13105004123320 is 2332140050131.

It is a happy number.

It is a super-2 number, since 2×13105004123320² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272542602 + ... + 272590681.

Almost surely, 2^{13105004123320} is an apocalyptic number.

13105004123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13105004123320 is an abundant number, since it is smaller than the sum of its proper divisors (16430317203800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13105004123320 is a wasteful number, since it uses less digits than its factorization.

13105004123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545133895 (or 545133891 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13105004123320 its reverse (2332140050131), we get a palindrome (15437144173451).

The spelling of 13105004123320 in words is "thirteen trillion, one hundred five billion, four million, one hundred twenty-three thousand, three hundred twenty".