111311241103687 has 2 divisors, whose sum is σ = 111311241103688. Its totient is φ = 111311241103686.

The previous prime is 111311241103669. The next prime is 111311241103693. The reversal of 111311241103687 is 786301142113111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111311241103687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111311241103987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655620551843 + 55655620551844.

It is an arithmetic number, because the mean of its divisors is an integer number (55655620551844).

Almost surely, 2^{111311241103687} is an apocalyptic number.

111311241103687 is a deficient number, since it is larger than the sum of its proper divisors (1).

111311241103687 is an equidigital number, since it uses as much as digits as its factorization.

111311241103687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 40.

Adding to 111311241103687 its reverse (786301142113111), we get a palindrome (897612383216798).

The spelling of 111311241103687 in words is "one hundred eleven trillion, three hundred eleven billion, two hundred forty-one million, one hundred three thousand, six hundred eighty-seven".