2021343100420 has 48 divisors (see below), whose sum is σ = 4857683378688. Its totient is φ = 692109072000.

The previous prime is 2021343100379. The next prime is 2021343100451. The reversal of 2021343100420 is 240013431202.

It is a junction number, because it is equal to n+sod(n) for n = 2021343100391 and 2021343100400.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9507487 + ... + 9717766.

It is an arithmetic number, because the mean of its divisors is an integer number (101201737056).

Almost surely, 2^{2021343100420} is an apocalyptic number.

2021343100420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021343100420 is an abundant number, since it is smaller than the sum of its proper divisors (2836340278268).

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

2021343100420 is a wasteful number, since it uses less digits than its factorization.

2021343100420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19226020 (or 19226018 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2021343100420 its reverse (240013431202), we get a palindrome (2261356531622).

The spelling of 2021343100420 in words is "two trillion, twenty-one billion, three hundred forty-three million, one hundred thousand, four hundred twenty".