121341105 has 16 divisors (see below), whose sum is σ = 215717760. Its totient is φ = 64715184.

The previous prime is 121341067. The next prime is 121341109. The reversal of 121341105 is 501143121.

It is not a de Polignac number, because 121341105 - 2¹⁰ = 121340081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121341109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449277 + ... + 449546.

It is an arithmetic number, because the mean of its divisors is an integer number (13482360).

Almost surely, 2^121341105 is an apocalyptic number.

121341105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121341105 is a deficient number, since it is larger than the sum of its proper divisors (94376655).

121341105 is an equidigital number, since it uses as much as digits as its factorization.

121341105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898837 (or 898831 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 121341105 is about 11015.4938609215. The cubic root of 121341105 is about 495.0730837913.

Adding to 121341105 its reverse (501143121), we get a palindrome (622484226).

The spelling of 121341105 in words is "one hundred twenty-one million, three hundred forty-one thousand, one hundred five".