121220302103 has 2 divisors, whose sum is σ = 121220302104. Its totient is φ = 121220302102.

The previous prime is 121220302057. The next prime is 121220302117. The reversal of 121220302103 is 301203022121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121220302103 - 2¹⁸ = 121220039959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121220302003) 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, 60610151051 + 60610151052.

It is an arithmetic number, because the mean of its divisors is an integer number (60610151052).

Almost surely, 2^121220302103 is an apocalyptic number.

121220302103 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220302103 is an equidigital number, since it uses as much as digits as its factorization.

121220302103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121220302103 its reverse (301203022121), we get a palindrome (422423324224).

The spelling of 121220302103 in words is "one hundred twenty-one billion, two hundred twenty million, three hundred two thousand, one hundred three".