121303303321003 has 2 divisors, whose sum is σ = 121303303321004. Its totient is φ = 121303303321002.

The previous prime is 121303303321001. The next prime is 121303303321043. The reversal of 121303303321003 is 300123303303121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121303303321003 - 2¹ = 121303303321001 is a prime.

Together with 121303303321001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121303303321001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651651660501 + 60651651660502.

It is an arithmetic number, because the mean of its divisors is an integer number (60651651660502).

Almost surely, 2^{121303303321003} is an apocalyptic number.

121303303321003 is a deficient number, since it is larger than the sum of its proper divisors (1).

121303303321003 is an equidigital number, since it uses as much as digits as its factorization.

121303303321003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 121303303321003 its reverse (300123303303121), we get a palindrome (421426606624124).

The spelling of 121303303321003 in words is "one hundred twenty-one trillion, three hundred three billion, three hundred three million, three hundred twenty-one thousand, three".