13111211300220 has 72 divisors (see below), whose sum is σ = 43386190127280. Its totient is φ = 3178475466240.

The previous prime is 13111211300167. The next prime is 13111211300249. The reversal of 13111211300220 is 2200311211131.

13111211300220 is a `hidden beast` number, since 1 + 31 + 112 + 1 + 1 + 300 + 220 = 666.

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 = 13111211300193 and 13111211300202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3310909965 + ... + 3310913924.

It is an arithmetic number, because the mean of its divisors is an integer number (602585973990).

Almost surely, 2^{13111211300220} is an apocalyptic number.

13111211300220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111211300220 is an abundant number, since it is smaller than the sum of its proper divisors (30274978827060).

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

13111211300220 is a wasteful number, since it uses less digits than its factorization.

13111211300220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6621823915 (or 6621823910 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 13111211300220 its reverse (2200311211131), we get a palindrome (15311522511351).

It can be divided in two parts, 13111211 and 300220, that added together give a palindrome (13411431).

The spelling of 13111211300220 in words is "thirteen trillion, one hundred eleven billion, two hundred eleven million, three hundred thousand, two hundred twenty".