121303303 has 8 divisors (see below), whose sum is σ = 132926976. Its totient is φ = 109779000.

The previous prime is 121303291. The next prime is 121303307. The reversal of 121303303 is 303303121.

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 121303303 - 2⁵ = 121303271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22273 + ... + 27178.

It is an arithmetic number, because the mean of its divisors is an integer number (16615872).

Almost surely, 2^121303303 is an apocalyptic number.

121303303 is a deficient number, since it is larger than the sum of its proper divisors (11623673).

121303303 is a wasteful number, since it uses less digits than its factorization.

121303303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49685.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 121303303 is about 11013.7778713755. Note that the first 3 decimals coincide. The cubic root of 121303303 is about 495.0216675888.

Adding to 121303303 its reverse (303303121), we get a palindrome (424606424).

It can be divided in two parts, 121 and 303303, that multiplied together give a palindrome (36699663).

The spelling of 121303303 in words is "one hundred twenty-one million, three hundred three thousand, three hundred three".