13111023310020 has 144 divisors (see below), whose sum is σ = 42024546869760. Its totient is φ = 3301928517888.

The previous prime is 13111023309977. The next prime is 13111023310027. The reversal of 13111023310020 is 2001332011131.

13111023310020 is a `hidden beast` number, since 1 + 311 + 1 + 0 + 2 + 331 + 0 + 0 + 20 = 666.

13111023310020 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 (18).

It is a junction number, because it is equal to n+sod(n) for n = 13111023309975 and 13111023310002.

It is not an unprimeable number, because it can be changed into a prime (13111023310027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19716699 + ... + 20370818.

It is an arithmetic number, because the mean of its divisors is an integer number (291837131040).

Almost surely, 2^{13111023310020} is an apocalyptic number.

13111023310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111023310020 is an abundant number, since it is smaller than the sum of its proper divisors (28913523559740).

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

13111023310020 is a wasteful number, since it uses less digits than its factorization.

13111023310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40087634 (or 40087629 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13111023310020 its reverse (2001332011131), we get a palindrome (15112355321151).

The spelling of 13111023310020 in words is "thirteen trillion, one hundred eleven billion, twenty-three million, three hundred ten thousand, twenty".