121303221303 has 8 divisors (see below), whose sum is σ = 176441049216. Its totient is φ = 73517103800.

The previous prime is 121303221257. The next prime is 121303221343. The reversal of 121303221303 is 303122303121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121303221303 - 2⁶ = 121303221239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121303221303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303221343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837927563 + ... + 1837927628.

It is an arithmetic number, because the mean of its divisors is an integer number (22055131152).

Almost surely, 2^121303221303 is an apocalyptic number.

121303221303 is a deficient number, since it is larger than the sum of its proper divisors (55137827913).

121303221303 is a wasteful number, since it uses less digits than its factorization.

121303221303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675855205.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121303221303 its reverse (303122303121), we get a palindrome (424425524424).

The spelling of 121303221303 in words is "one hundred twenty-one billion, three hundred three million, two hundred twenty-one thousand, three hundred three".