203321302200121 has 16 divisors (see below), whose sum is σ = 244197336659584. Its totient is φ = 165621877835904.

The previous prime is 203321302200103. The next prime is 203321302200193. The reversal of 203321302200121 is 121002203123302.

It is not a de Polignac number, because 203321302200121 - 2¹³ = 203321302191929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203321302200092 and 203321302200101.

It is not an unprimeable number, because it can be changed into a prime (203321302210121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9128178780 + ... + 9128201053.

It is an arithmetic number, because the mean of its divisors is an integer number (15262333541224).

Almost surely, 2^{203321302200121} is an apocalyptic number.

It is an amenable number.

203321302200121 is a deficient number, since it is larger than the sum of its proper divisors (40876034459463).

203321302200121 is a wasteful number, since it uses less digits than its factorization.

203321302200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18256379920.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203321302200121 its reverse (121002203123302), we get a palindrome (324323505323423).

The spelling of 203321302200121 in words is "two hundred three trillion, three hundred twenty-one billion, three hundred two million, two hundred thousand, one hundred twenty-one".