121103313 has 4 divisors (see below), whose sum is σ = 161471088. Its totient is φ = 80735540.

The previous prime is 121103293. The next prime is 121103377. The reversal of 121103313 is 313301121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121103313 - 2⁶ = 121103249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121103292 and 121103301.

It is not an unprimeable number, because it can be changed into a prime (121103113) 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 3 ways as a sum of consecutive naturals, for example, 20183883 + ... + 20183888.

It is an arithmetic number, because the mean of its divisors is an integer number (40367772).

Almost surely, 2^121103313 is an apocalyptic number.

It is an amenable number.

121103313 is a deficient number, since it is larger than the sum of its proper divisors (40367775).

121103313 is an equidigital number, since it uses as much as digits as its factorization.

121103313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40367774.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 121103313 is about 11004.6950434803. The cubic root of 121103313 is about 494.7494742883.

Adding to 121103313 its reverse (313301121), we get a palindrome (434404434).

The spelling of 121103313 in words is "one hundred twenty-one million, one hundred three thousand, three hundred thirteen".