2113111642020 has 96 divisors (see below), whose sum is σ = 6079318697088. Its totient is φ = 548023652352.

The previous prime is 2113111641937. The next prime is 2113111642027. The reversal of 2113111642020 is 202461113112.

It is not an unprimeable number, because it can be changed into a prime (2113111642027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4822804 + ... + 5242676.

It is an arithmetic number, because the mean of its divisors is an integer number (63326236428).

Almost surely, 2^{2113111642020} is an apocalyptic number.

2113111642020 is a gapful number since it is divisible by the number (20) 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 2113111642020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3039659348544).

2113111642020 is an abundant number, since it is smaller than the sum of its proper divisors (3966207055068).

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

2113111642020 is a wasteful number, since it uses less digits than its factorization.

2113111642020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422189 (or 422187 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 2113111642020 its reverse (202461113112), we get a palindrome (2315572755132).

The spelling of 2113111642020 in words is "two trillion, one hundred thirteen billion, one hundred eleven million, six hundred forty-two thousand, twenty".