200930499421 has 4 divisors (see below), whose sum is σ = 200951230012. Its totient is φ = 200909768832.

The previous prime is 200930499401. The next prime is 200930499463. The reversal of 200930499421 is 124994039002.

It is a happy number.

200930499421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 120816027396 + 80114472025 = 347586^2 + 283045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200930499421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200930499401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10350750 + ... + 10370143.

It is an arithmetic number, because the mean of its divisors is an integer number (50237807503).

Almost surely, 2^200930499421 is an apocalyptic number.

It is an amenable number.

200930499421 is a deficient number, since it is larger than the sum of its proper divisors (20730591).

200930499421 is an equidigital number, since it uses as much as digits as its factorization.

200930499421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20730590.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 200930499421 in words is "two hundred billion, nine hundred thirty million, four hundred ninety-nine thousand, four hundred twenty-one".