121204200203 has 2 divisors, whose sum is σ = 121204200204. Its totient is φ = 121204200202.

The previous prime is 121204200199. The next prime is 121204200209. The reversal of 121204200203 is 302002402121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121204200203 - 2² = 121204200199 is a prime.

It is not a weakly prime, because it can be changed into another prime (121204200209) 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 as a sum of consecutive naturals, namely, 60602100101 + 60602100102.

It is an arithmetic number, because the mean of its divisors is an integer number (60602100102).

Almost surely, 2^121204200203 is an apocalyptic number.

121204200203 is a deficient number, since it is larger than the sum of its proper divisors (1).

121204200203 is an equidigital number, since it uses as much as digits as its factorization.

121204200203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 121204200203 its reverse (302002402121), we get a palindrome (423206602324).

The spelling of 121204200203 in words is "one hundred twenty-one billion, two hundred four million, two hundred thousand, two hundred three".