200121201103 has 32 divisors (see below), whose sum is σ = 218921066496. Its totient is φ = 182192467968.

The previous prime is 200121201089. The next prime is 200121201113. The reversal of 200121201103 is 301102121002.

It is a cyclic number.

It is not a de Polignac number, because 200121201103 - 2¹⁷ = 200121070031 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 (200121201113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62477700 + ... + 62480902.

It is an arithmetic number, because the mean of its divisors is an integer number (6841283328).

Almost surely, 2^200121201103 is an apocalyptic number.

200121201103 is a deficient number, since it is larger than the sum of its proper divisors (18799865393).

200121201103 is a wasteful number, since it uses less digits than its factorization.

200121201103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 200121201103 its reverse (301102121002), we get a palindrome (501223322105).

The spelling of 200121201103 in words is "two hundred billion, one hundred twenty-one million, two hundred one thousand, one hundred three".