111049901 has 2 divisors, whose sum is σ = 111049902. Its totient is φ = 111049900.

The previous prime is 111049891. The next prime is 111049907. The reversal of 111049901 is 109940111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101989801 + 9060100 = 10099^2 + 3010^2 .

It is an emirp because it is prime and its reverse (109940111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111049901 - 2²² = 106855597 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111049907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55524950 + 55524951.

It is an arithmetic number, because the mean of its divisors is an integer number (55524951).

Almost surely, 2^111049901 is an apocalyptic number.

It is an amenable number.

111049901 is a deficient number, since it is larger than the sum of its proper divisors (1).

111049901 is an equidigital number, since it uses as much as digits as its factorization.

111049901 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 26.

The square root of 111049901 is about 10538.0216834091. The cubic root of 111049901 is about 480.6615602968.

The spelling of 111049901 in words is "one hundred eleven million, forty-nine thousand, nine hundred one".