200630121 has 4 divisors (see below), whose sum is σ = 267506832. Its totient is φ = 133753412.

The previous prime is 200630113. The next prime is 200630147. The reversal of 200630121 is 121036002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200630121 - 2³ = 200630113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200630121.

It is not an unprimeable number, because it can be changed into a prime (200630161) 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, 33438351 + ... + 33438356.

It is an arithmetic number, because the mean of its divisors is an integer number (66876708).

Almost surely, 2^200630121 is an apocalyptic number.

It is an amenable number.

200630121 is a deficient number, since it is larger than the sum of its proper divisors (66876711).

200630121 is an equidigital number, since it uses as much as digits as its factorization.

200630121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66876710.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 200630121 is about 14164.3962455164. The cubic root of 200630121 is about 585.4170654360.

Adding to 200630121 its reverse (121036002), we get a palindrome (321666123).

The spelling of 200630121 in words is "two hundred million, six hundred thirty thousand, one hundred twenty-one".