111444405543041 has 2 divisors, whose sum is σ = 111444405543042. Its totient is φ = 111444405543040.

The previous prime is 111444405542983. The next prime is 111444405543091. The reversal of 111444405543041 is 140345504444111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100577631745600 + 10866773797441 = 10028840^2 + 3296479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111444405543041 is a prime.

It is a super-2 number, since 2×111444405543041² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111444405543041.

It is not a weakly prime, because it can be changed into another prime (111444405543091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55722202771520 + 55722202771521.

It is an arithmetic number, because the mean of its divisors is an integer number (55722202771521).

Almost surely, 2^{111444405543041} is an apocalyptic number.

It is an amenable number.

111444405543041 is a deficient number, since it is larger than the sum of its proper divisors (1).

111444405543041 is an equidigital number, since it uses as much as digits as its factorization.

111444405543041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 307200, while the sum is 41.

Adding to 111444405543041 its reverse (140345504444111), we get a palindrome (251789909987152).

The spelling of 111444405543041 in words is "one hundred eleven trillion, four hundred forty-four billion, four hundred five million, five hundred forty-three thousand, forty-one".