111211401041 has 4 divisors (see below), whose sum is σ = 119766124212. Its totient is φ = 102656677872.

The previous prime is 111211401029. The next prime is 111211401043. The reversal of 111211401041 is 140104112111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75842956816 + 35368444225 = 275396^2 + 188065^2 .

It is a cyclic number.

It is not a de Polignac number, because 111211401041 - 2¹⁸ = 111211138897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111211401043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4277361566 + ... + 4277361591.

It is an arithmetic number, because the mean of its divisors is an integer number (29941531053).

Almost surely, 2^111211401041 is an apocalyptic number.

It is an amenable number.

111211401041 is a deficient number, since it is larger than the sum of its proper divisors (8554723171).

111211401041 is an equidigital number, since it uses as much as digits as its factorization.

111211401041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8554723170.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111211401041 its reverse (140104112111), we get a palindrome (251315513152).

The spelling of 111211401041 in words is "one hundred eleven billion, two hundred eleven million, four hundred one thousand, forty-one".