13111031520660 has 48 divisors (see below), whose sum is σ = 37403546535936. Its totient is φ = 3430307617152.

The previous prime is 13111031520589. The next prime is 13111031520679. The reversal of 13111031520660 is 6602513011131.

13111031520660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2061479764 + ... + 2061486123.

It is an arithmetic number, because the mean of its divisors is an integer number (779240552832).

Almost surely, 2^{13111031520660} is an apocalyptic number.

13111031520660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111031520660 is an abundant number, since it is smaller than the sum of its proper divisors (24292515015276).

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

13111031520660 is a wasteful number, since it uses less digits than its factorization.

13111031520660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122965952 (or 4122965950 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

Adding to 13111031520660 its reverse (6602513011131), we get a palindrome (19713544531791).

The spelling of 13111031520660 in words is "thirteen trillion, one hundred eleven billion, thirty-one million, five hundred twenty thousand, six hundred sixty".