111605362643 has 2 divisors, whose sum is σ = 111605362644. Its totient is φ = 111605362642.

The previous prime is 111605362613. The next prime is 111605362681. The reversal of 111605362643 is 346263506111.

It is an a-pointer prime, because the next prime (111605362681) can be obtained adding 111605362643 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111605362643 - 2⁶ = 111605362579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111605362597 and 111605362606.

It is not a weakly prime, because it can be changed into another prime (111605362613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55802681321 + 55802681322.

It is an arithmetic number, because the mean of its divisors is an integer number (55802681322).

Almost surely, 2^111605362643 is an apocalyptic number.

111605362643 is a deficient number, since it is larger than the sum of its proper divisors (1).

111605362643 is an equidigital number, since it uses as much as digits as its factorization.

111605362643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 111605362643 its reverse (346263506111), we get a palindrome (457868868754).

The spelling of 111605362643 in words is "one hundred eleven billion, six hundred five million, three hundred sixty-two thousand, six hundred forty-three".