200021043343043 has 4 divisors (see below), whose sum is σ = 215407277446368. Its totient is φ = 184634809239720.

The previous prime is 200021043343021. The next prime is 200021043343049. The reversal of 200021043343043 is 340343340120002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200021043343043 - 2¹⁰ = 200021043342019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200021043342997 and 200021043343015.

It is not an unprimeable number, because it can be changed into a prime (200021043343049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7693117051643 + ... + 7693117051668.

It is an arithmetic number, because the mean of its divisors is an integer number (53851819361592).

Almost surely, 2^{200021043343043} is an apocalyptic number.

200021043343043 is a deficient number, since it is larger than the sum of its proper divisors (15386234103325).

200021043343043 is a wasteful number, since it uses less digits than its factorization.

200021043343043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15386234103324.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 200021043343043 its reverse (340343340120002), we get a palindrome (540364383463045).

The spelling of 200021043343043 in words is "two hundred trillion, twenty-one billion, forty-three million, three hundred forty-three thousand, forty-three".