111143214241 has 4 divisors (see below), whose sum is σ = 114975738900. Its totient is φ = 107310689584.

The previous prime is 111143214239. The next prime is 111143214269. The reversal of 111143214241 is 142412341111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142412341111 = 257 ⋅554133623.

It can be written as a sum of positive squares in 2 ways, for example, as 25057307025 + 86085907216 = 158295^2 + 293404^2 .

It is a cyclic number.

It is not a de Polignac number, because 111143214241 - 2¹ = 111143214239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111143214271) 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, 1916262286 + ... + 1916262343.

It is an arithmetic number, because the mean of its divisors is an integer number (28743934725).

Almost surely, 2^111143214241 is an apocalyptic number.

It is an amenable number.

111143214241 is a deficient number, since it is larger than the sum of its proper divisors (3832524659).

111143214241 is an equidigital number, since it uses as much as digits as its factorization.

111143214241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832524658.

The product of its digits is 768, while the sum is 25.

Adding to 111143214241 its reverse (142412341111), we get a palindrome (253555555352).

The spelling of 111143214241 in words is "one hundred eleven billion, one hundred forty-three million, two hundred fourteen thousand, two hundred forty-one".