200421312106 has 8 divisors (see below), whose sum is σ = 303390059940. Its totient is φ = 99291292128.

The previous prime is 200421312101. The next prime is 200421312107. The reversal of 200421312106 is 601213124002.

It can be written as a sum of positive squares in 2 ways, for example, as 180462686481 + 19958625625 = 424809^2 + 141275^2 .

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

It is not an unprimeable number, because it can be changed into a prime (200421312101) 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, 459681691 + ... + 459682126.

Almost surely, 2^200421312106 is an apocalyptic number.

200421312106 is a deficient number, since it is larger than the sum of its proper divisors (102968747834).

200421312106 is a wasteful number, since it uses less digits than its factorization.

200421312106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919363928.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 200421312106 its reverse (601213124002), we get a palindrome (801634436108).

The spelling of 200421312106 in words is "two hundred billion, four hundred twenty-one million, three hundred twelve thousand, one hundred six".