111441220141 has 4 divisors (see below), whose sum is σ = 111442533372. Its totient is φ = 111439906912.

The previous prime is 111441220129. The next prime is 111441220159. The reversal of 111441220141 is 141022144111.

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 73886656041 + 37554564100 = 271821^2 + 193790^2 .

It is a cyclic number.

It is not a de Polignac number, because 111441220141 - 2⁵ = 111441220109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111441200141) 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, 519826 + ... + 702211.

It is an arithmetic number, because the mean of its divisors is an integer number (27860633343).

Almost surely, 2^111441220141 is an apocalyptic number.

It is an amenable number.

111441220141 is a deficient number, since it is larger than the sum of its proper divisors (1313231).

111441220141 is an equidigital number, since it uses as much as digits as its factorization.

111441220141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313230.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 111441220141 its reverse (141022144111), we get a palindrome (252463364252).

The spelling of 111441220141 in words is "one hundred eleven billion, four hundred forty-one million, two hundred twenty thousand, one hundred forty-one".