111106601 has 2 divisors, whose sum is σ = 111106602. Its totient is φ = 111106600.

The previous prime is 111106591. The next prime is 111106607. The reversal of 111106601 is 106601111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79477225 + 31629376 = 8915^2 + 5624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111106601 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111106601.

It is not a weakly prime, because it can be changed into another prime (111106607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55553300 + 55553301.

It is an arithmetic number, because the mean of its divisors is an integer number (55553301).

Almost surely, 2^111106601 is an apocalyptic number.

It is an amenable number.

111106601 is a deficient number, since it is larger than the sum of its proper divisors (1).

111106601 is an equidigital number, since it uses as much as digits as its factorization.

111106601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 111106601 is about 10540.7115983694. The cubic root of 111106601 is about 480.7433519753.

Adding to 111106601 its reverse (106601111), we get a palindrome (217707712).

The spelling of 111106601 in words is "one hundred eleven million, one hundred six thousand, six hundred one".