200121133103 has 24 divisors (see below), whose sum is σ = 217644864192. Its totient is φ = 183288576512.

The previous prime is 200121133019. The next prime is 200121133117. The reversal of 200121133103 is 301331121002.

It is not a de Polignac number, because 200121133103 - 2⁸ = 200121132847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121133133) 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 23 ways as a sum of consecutive naturals, for example, 25596851 + ... + 25604667.

It is an arithmetic number, because the mean of its divisors is an integer number (9068536008).

Almost surely, 2^200121133103 is an apocalyptic number.

200121133103 is a deficient number, since it is larger than the sum of its proper divisors (17523731089).

200121133103 is an equidigital number, since it uses as much as digits as its factorization.

200121133103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8239 (or 8060 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 200121133103 its reverse (301331121002), we get a palindrome (501452254105).

The spelling of 200121133103 in words is "two hundred billion, one hundred twenty-one million, one hundred thirty-three thousand, one hundred three".