2113401320020 has 12 divisors (see below), whose sum is σ = 4438142772084. Its totient is φ = 845360528000.

The previous prime is 2113401320011. The next prime is 2113401320029. The reversal of 2113401320020 is 200231043112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2113401320011) and next prime (2113401320029).

It can be written as a sum of positive squares in 2 ways, for example, as 682860933316 + 1430540386704 = 826354^2 + 1196052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2113401320020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113401320029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52835032981 + ... + 52835033020.

It is an arithmetic number, because the mean of its divisors is an integer number (369845231007).

Almost surely, 2^{2113401320020} is an apocalyptic number.

2113401320020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113401320020 is an abundant number, since it is smaller than the sum of its proper divisors (2324741452064).

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

2113401320020 is a wasteful number, since it uses less digits than its factorization.

2113401320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105670066010 (or 105670066008 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2113401320020 its reverse (200231043112), we get a palindrome (2313632363132).

The spelling of 2113401320020 in words is "two trillion, one hundred thirteen billion, four hundred one million, three hundred twenty thousand, twenty".