11102172170087 has 2 divisors, whose sum is σ = 11102172170088. Its totient is φ = 11102172170086.

The previous prime is 11102172170071. The next prime is 11102172170129. The reversal of 11102172170087 is 78007127120111.

11102172170087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11102172170087 - 2⁴ = 11102172170071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11102172170087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11102172130087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551086085043 + 5551086085044.

It is an arithmetic number, because the mean of its divisors is an integer number (5551086085044).

Almost surely, 2^{11102172170087} is an apocalyptic number.

11102172170087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102172170087 is an equidigital number, since it uses as much as digits as its factorization.

11102172170087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10976, while the sum is 38.

Adding to 11102172170087 its reverse (78007127120111), we get a palindrome (89109299290198).

The spelling of 11102172170087 in words is "eleven trillion, one hundred two billion, one hundred seventy-two million, one hundred seventy thousand, eighty-seven".