111144004441 has 2 divisors, whose sum is σ = 111144004442. Its totient is φ = 111144004440.

The previous prime is 111144004403. The next prime is 111144004451. The reversal of 111144004441 is 144400441111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106958432025 + 4185572416 = 327045^2 + 64696^2 .

It is a cyclic number.

It is not a de Polignac number, because 111144004441 - 2¹¹ = 111144002393 is a prime.

It is not a weakly prime, because it can be changed into another prime (111144004451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55572002220 + 55572002221.

It is an arithmetic number, because the mean of its divisors is an integer number (55572002221).

Almost surely, 2^111144004441 is an apocalyptic number.

It is an amenable number.

111144004441 is a deficient number, since it is larger than the sum of its proper divisors (1).

111144004441 is an equidigital number, since it uses as much as digits as its factorization.

111144004441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 111144004441 its reverse (144400441111), we get a palindrome (255544445552).

The spelling of 111144004441 in words is "one hundred eleven billion, one hundred forty-four million, four thousand, four hundred forty-one".