121541105 has 32 divisors (see below), whose sum is σ = 170726400. Its totient is φ = 81349632.

The previous prime is 121541087. The next prime is 121541129. The reversal of 121541105 is 501145121.

It is not a de Polignac number, because 121541105 - 2⁸ = 121540849 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312251 + ... + 312639.

It is an arithmetic number, because the mean of its divisors is an integer number (5335200).

Almost surely, 2^121541105 is an apocalyptic number.

It is an amenable number.

121541105 is a deficient number, since it is larger than the sum of its proper divisors (49185295).

121541105 is a wasteful number, since it uses less digits than its factorization.

121541105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 121541105 is about 11024.5682455142. The cubic root of 121541105 is about 495.3449352422.

Adding to 121541105 its reverse (501145121), we get a palindrome (622686226).

The spelling of 121541105 in words is "one hundred twenty-one million, five hundred forty-one thousand, one hundred five".