111111000041 has 2 divisors, whose sum is σ = 111111000042. Its totient is φ = 111111000040.

The previous prime is 111110999999. The next prime is 111111000061. The reversal of 111111000041 is 140000111111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97201156441 + 13909843600 = 311771^2 + 117940^2 .

It is a cyclic number.

It is not a de Polignac number, because 111111000041 - 2¹⁴ = 111110983657 is a prime.

It is a super-2 number, since 2×111111000041² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111110999986 and 111111000031.

It is not a weakly prime, because it can be changed into another prime (111111000061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555500020 + 55555500021.

It is an arithmetic number, because the mean of its divisors is an integer number (55555500021).

Almost surely, 2^111111000041 is an apocalyptic number.

It is an amenable number.

111111000041 is a deficient number, since it is larger than the sum of its proper divisors (1).

111111000041 is an equidigital number, since it uses as much as digits as its factorization.

111111000041 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.

Adding to 111111000041 its reverse (140000111111), we get a palindrome (251111111152).

The spelling of 111111000041 in words is "one hundred eleven billion, one hundred eleven million, forty-one", and thus it is an aban number.