200621423803 has 8 divisors (see below), whose sum is σ = 204864961088. Its totient is φ = 196414627464.

The previous prime is 200621423773. The next prime is 200621423809. The reversal of 200621423803 is 308324126002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200621423803 - 2⁵ = 200621423771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200621423809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9174201 + ... + 9196042.

It is an arithmetic number, because the mean of its divisors is an integer number (25608120136).

Almost surely, 2^200621423803 is an apocalyptic number.

200621423803 is a deficient number, since it is larger than the sum of its proper divisors (4243537285).

200621423803 is a wasteful number, since it uses less digits than its factorization.

200621423803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18370473.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 200621423803 its reverse (308324126002), we get a palindrome (508945549805).

The spelling of 200621423803 in words is "two hundred billion, six hundred twenty-one million, four hundred twenty-three thousand, eight hundred three".