121423313 has 8 divisors (see below), whose sum is σ = 132563520. Its totient is φ = 110300080.

The previous prime is 121423297. The next prime is 121423321. The reversal of 121423313 is 313324121.

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

It is not a de Polignac number, because 121423313 - 2⁴ = 121423297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121423343) 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, 14243 + ... + 21111.

It is an arithmetic number, because the mean of its divisors is an integer number (16570440).

Almost surely, 2^121423313 is an apocalyptic number.

It is an amenable number.

121423313 is a deficient number, since it is larger than the sum of its proper divisors (11140207).

121423313 is a wasteful number, since it uses less digits than its factorization.

121423313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8487.

The product of its digits is 432, while the sum is 20.

The square root of 121423313 is about 11019.2247004950. The cubic root of 121423313 is about 495.1848617427.

Adding to 121423313 its reverse (313324121), we get a palindrome (434747434).

The spelling of 121423313 in words is "one hundred twenty-one million, four hundred twenty-three thousand, three hundred thirteen".