111328601 has 2 divisors, whose sum is σ = 111328602. Its totient is φ = 111328600.

The previous prime is 111328589. The next prime is 111328621. The reversal of 111328601 is 106823111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107661376 + 3667225 = 10376^2 + 1915^2 .

It is a cyclic number.

It is not a de Polignac number, because 111328601 - 2⁶ = 111328537 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (111328621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55664300 + 55664301.

It is an arithmetic number, because the mean of its divisors is an integer number (55664301).

Almost surely, 2^111328601 is an apocalyptic number.

It is an amenable number.

111328601 is a deficient number, since it is larger than the sum of its proper divisors (1).

111328601 is an equidigital number, since it uses as much as digits as its factorization.

111328601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 111328601 is about 10551.2369417050. The cubic root of 111328601 is about 481.0633270270.

The spelling of 111328601 in words is "one hundred eleven million, three hundred twenty-eight thousand, six hundred one".