200242023021 has 24 divisors (see below), whose sum is σ = 307266907584. Its totient is φ = 130238707680.

The previous prime is 200242023011. The next prime is 200242023029. The reversal of 200242023021 is 120320242002.

200242023021 is a `hidden beast` number, since 200 + 2 + 420 + 23 + 0 + 21 = 666.

It is not a de Polignac number, because 200242023021 - 2¹⁸ = 200241760877 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200242022985 and 200242023003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200242023029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10039321 + ... + 10059246.

It is an arithmetic number, because the mean of its divisors is an integer number (12802787816).

Almost surely, 2^200242023021 is an apocalyptic number.

It is an amenable number.

200242023021 is a deficient number, since it is larger than the sum of its proper divisors (107024884563).

200242023021 is an equidigital number, since it uses as much as digits as its factorization.

200242023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20098623 (or 20098611 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 200242023021 its reverse (120320242002), we get a palindrome (320562265023).

The spelling of 200242023021 in words is "two hundred billion, two hundred forty-two million, twenty-three thousand, twenty-one".