10111216727 has 2 divisors, whose sum is σ = 10111216728. Its totient is φ = 10111216726.

The previous prime is 10111216721. The next prime is 10111216777. The reversal of 10111216727 is 72761211101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10111216727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10111216727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111216721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055608363 + 5055608364.

It is an arithmetic number, because the mean of its divisors is an integer number (5055608364).

Almost surely, 2^10111216727 is an apocalyptic number.

10111216727 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111216727 is an equidigital number, since it uses as much as digits as its factorization.

10111216727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 29.

Adding to 10111216727 its reverse (72761211101), we get a palindrome (82872427828).

The spelling of 10111216727 in words is "ten billion, one hundred eleven million, two hundred sixteen thousand, seven hundred twenty-seven".