200420030121 has 8 divisors (see below), whose sum is σ = 267262173504. Its totient is φ = 133595620080.

The previous prime is 200420030089. The next prime is 200420030149. The reversal of 200420030121 is 121030024002.

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

It is not a de Polignac number, because 200420030121 - 2⁵ = 200420030089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200420030121.

It is not an unprimeable number, because it can be changed into a prime (200420030221) 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, 4406941 + ... + 4452186.

It is an arithmetic number, because the mean of its divisors is an integer number (33407771688).

Almost surely, 2^200420030121 is an apocalyptic number.

It is an amenable number.

200420030121 is a deficient number, since it is larger than the sum of its proper divisors (66842143383).

200420030121 is an equidigital number, since it uses as much as digits as its factorization.

200420030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8866671.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 200420030121 its reverse (121030024002), we get a palindrome (321450054123).

The spelling of 200420030121 in words is "two hundred billion, four hundred twenty million, thirty thousand, one hundred twenty-one".