200042000321 has 4 divisors (see below), whose sum is σ = 200055199572. Its totient is φ = 200028801072.

The previous prime is 200042000317. The next prime is 200042000407. The reversal of 200042000321 is 123000240002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 175841842225 + 24200158096 = 419335^2 + 155564^2 .

It is a cyclic number.

It is not a de Polignac number, because 200042000321 - 2² = 200042000317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200042000296 and 200042000305.

It is not an unprimeable number, because it can be changed into a prime (200042006321) 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, 6576866 + ... + 6607211.

It is an arithmetic number, because the mean of its divisors is an integer number (50013799893).

Almost surely, 2^200042000321 is an apocalyptic number.

It is an amenable number.

200042000321 is a deficient number, since it is larger than the sum of its proper divisors (13199251).

200042000321 is a wasteful number, since it uses less digits than its factorization.

200042000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13199250.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 200042000321 its reverse (123000240002), we get a palindrome (323042240323).

The spelling of 200042000321 in words is "two hundred billion, forty-two million, three hundred twenty-one", and thus it is an aban number.