121303223 has 2 divisors, whose sum is σ = 121303224. Its totient is φ = 121303222.

The previous prime is 121303181. The next prime is 121303241. The reversal of 121303223 is 322303121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121303223 - 2⁶ = 121303159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121303423) 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, 60651611 + 60651612.

It is an arithmetic number, because the mean of its divisors is an integer number (60651612).

Almost surely, 2^121303223 is an apocalyptic number.

121303223 is a deficient number, since it is larger than the sum of its proper divisors (1).

121303223 is an equidigital number, since it uses as much as digits as its factorization.

121303223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 121303223 is about 11013.7742395602. The cubic root of 121303223 is about 495.0215587658.

Adding to 121303223 its reverse (322303121), we get a palindrome (443606344).

The spelling of 121303223 in words is "one hundred twenty-one million, three hundred three thousand, two hundred twenty-three".