109941121 has 2 divisors, whose sum is σ = 109941122. Its totient is φ = 109941120.

The previous prime is 109941113. The next prime is 109941149. The reversal of 109941121 is 121149901.

It is an a-pointer prime, because the next prime (109941149) can be obtained adding 109941121 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106193025 + 3748096 = 10305^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 109941121 - 2³ = 109941113 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109941121.

It is not a weakly prime, because it can be changed into another prime (109941191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54970560 + 54970561.

It is an arithmetic number, because the mean of its divisors is an integer number (54970561).

Almost surely, 2^109941121 is an apocalyptic number.

It is an amenable number.

109941121 is a deficient number, since it is larger than the sum of its proper divisors (1).

109941121 is an equidigital number, since it uses as much as digits as its factorization.

109941121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 109941121 is about 10485.2811597973. The cubic root of 109941121 is about 479.0564813548.

The spelling of 109941121 in words is "one hundred nine million, nine hundred forty-one thousand, one hundred twenty-one".