111111041 has 2 divisors, whose sum is σ = 111111042. Its totient is φ = 111111040.

The previous prime is 111111023. The next prime is 111111061. The reversal of 111111041 is 140111111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105370225 + 5740816 = 10265^2 + 2396^2 .

It is a cyclic number.

It is not a de Polignac number, because 111111041 - 2²⁶ = 44002177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111111061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555520 + 55555521.

It is an arithmetic number, because the mean of its divisors is an integer number (55555521).

Almost surely, 2^111111041 is an apocalyptic number.

It is an amenable number.

111111041 is a deficient number, since it is larger than the sum of its proper divisors (1).

111111041 is an equidigital number, since it uses as much as digits as its factorization.

111111041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 111111041 is about 10540.9222082321. The cubic root of 111111041 is about 480.7497556514.

Adding to 111111041 its reverse (140111111), we get a palindrome (251222152).

The spelling of 111111041 in words is "one hundred eleven million, one hundred eleven thousand, forty-one".