121313223 has 12 divisors (see below), whose sum is σ = 176492680. Its totient is φ = 80292816.

The previous prime is 121313197. The next prime is 121313243. The reversal of 121313223 is 322313121.

It is not a de Polignac number, because 121313223 - 2¹⁰ = 121312199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121313196 and 121313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313243) 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 in 11 ways as a sum of consecutive naturals, for example, 47236 + ... + 49737.

Almost surely, 2^121313223 is an apocalyptic number.

121313223 is a deficient number, since it is larger than the sum of its proper divisors (55179457).

121313223 is a wasteful number, since it uses less digits than its factorization.

121313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97118 (or 97115 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 121313223 is about 11014.2282071873. The cubic root of 121313223 is about 495.0351612611.

Adding to 121313223 its reverse (322313121), we get a palindrome (443626344).

The spelling of 121313223 in words is "one hundred twenty-one million, three hundred thirteen thousand, two hundred twenty-three".