13100331202020 has 144 divisors (see below), whose sum is σ = 41807069701488. Its totient is φ = 3316102225920.

The previous prime is 13100331201989. The next prime is 13100331202027. The reversal of 13100331202020 is 2020213300131.

13100331202020 is a `hidden beast` number, since 1 + 310 + 0 + 3 + 312 + 0 + 20 + 20 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 390065200704 + 12710266001316 = 624552^2 + 3565146^2 .

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 = 13100331201984 and 13100331202002.

It is not an unprimeable number, because it can be changed into a prime (13100331202027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23714949 + ... + 24261068.

It is an arithmetic number, because the mean of its divisors is an integer number (290326872927).

Almost surely, 2^{13100331202020} is an apocalyptic number.

13100331202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13100331202020 is an abundant number, since it is smaller than the sum of its proper divisors (28706738499468).

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

13100331202020 is a wasteful number, since it uses less digits than its factorization.

13100331202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47976110 (or 47976105 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13100331202020 its reverse (2020213300131), we get a palindrome (15120544502151).

The spelling of 13100331202020 in words is "thirteen trillion, one hundred billion, three hundred thirty-one million, two hundred two thousand, twenty".