13511053411320 has 512 divisors, whose sum is σ = 45693617356800. Its totient is φ = 3180073881600.

The previous prime is 13511053411241. The next prime is 13511053411351. The reversal of 13511053411320 is 2311435011531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 309007060 + ... + 309050780.

It is an arithmetic number, because the mean of its divisors is an integer number (89245346400).

Almost surely, 2^{13511053411320} is an apocalyptic number.

13511053411320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13511053411320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22846808678400).

13511053411320 is an abundant number, since it is smaller than the sum of its proper divisors (32182563945480).

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

13511053411320 is a wasteful number, since it uses less digits than its factorization.

13511053411320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43931 (or 43927 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 13511053411320 its reverse (2311435011531), we get a palindrome (15822488422851).

The spelling of 13511053411320 in words is "thirteen trillion, five hundred eleven billion, fifty-three million, four hundred eleven thousand, three hundred twenty".