111334109 has 2 divisors, whose sum is σ = 111334110. Its totient is φ = 111334108.

The previous prime is 111334081. The next prime is 111334123. The reversal of 111334109 is 901433111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86304100 + 25030009 = 9290^2 + 5003^2 .

It is a cyclic number.

It is not a de Polignac number, because 111334109 - 2⁸ = 111333853 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_6375200 and since 111334109 and 6375200 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111334189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55667054 + 55667055.

It is an arithmetic number, because the mean of its divisors is an integer number (55667055).

Almost surely, 2^111334109 is an apocalyptic number.

It is an amenable number.

111334109 is a deficient number, since it is larger than the sum of its proper divisors (1).

111334109 is an equidigital number, since it uses as much as digits as its factorization.

111334109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 111334109 is about 10551.4979505282. The cubic root of 111334109 is about 481.0712604573.

The spelling of 111334109 in words is "one hundred eleven million, three hundred thirty-four thousand, one hundred nine".