111144243241 has 16 divisors (see below), whose sum is σ = 114695659008. Its totient is φ = 107633952000.

The previous prime is 111144243211. The next prime is 111144243281. The reversal of 111144243241 is 142342441111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111144243241 - 2³⁵ = 76784504873 is a prime.

It is a super-2 number, since 2×111144243241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111144243211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9199981 + ... + 9212053.

It is an arithmetic number, because the mean of its divisors is an integer number (7168478688).

Almost surely, 2^111144243241 is an apocalyptic number.

It is an amenable number.

111144243241 is a deficient number, since it is larger than the sum of its proper divisors (3551415767).

111144243241 is a wasteful number, since it uses less digits than its factorization.

111144243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13752.

The product of its digits is 3072, while the sum is 28.

Adding to 111144243241 its reverse (142342441111), we get a palindrome (253486684352).

The spelling of 111144243241 in words is "one hundred eleven billion, one hundred forty-four million, two hundred forty-three thousand, two hundred forty-one".