111304129 has 2 divisors, whose sum is σ = 111304130. Its totient is φ = 111304128.

The previous prime is 111304097. The next prime is 111304133. The reversal of 111304129 is 921403111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107081104 + 4223025 = 10348^2 + 2055^2 .

It is a cyclic number.

It is not a de Polignac number, because 111304129 - 2⁵ = 111304097 is a prime.

It is not a weakly prime, because it can be changed into another prime (111304139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55652064 + 55652065.

It is an arithmetic number, because the mean of its divisors is an integer number (55652065).

Almost surely, 2^111304129 is an apocalyptic number.

It is an amenable number.

111304129 is a deficient number, since it is larger than the sum of its proper divisors (1).

111304129 is an equidigital number, since it uses as much as digits as its factorization.

111304129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 111304129 is about 10550.0772035090. The cubic root of 111304129 is about 481.0280756949.

The spelling of 111304129 in words is "one hundred eleven million, three hundred four thousand, one hundred twenty-nine".