11111011100087 has 2 divisors, whose sum is σ = 11111011100088. Its totient is φ = 11111011100086.

The previous prime is 11111011100051. The next prime is 11111011100221. The reversal of 11111011100087 is 78000111011111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111011100087 - 2⁸ = 11111011099831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111011105087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555505550043 + 5555505550044.

It is an arithmetic number, because the mean of its divisors is an integer number (5555505550044).

Almost surely, 2^{11111011100087} is an apocalyptic number.

11111011100087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111011100087 is an equidigital number, since it uses as much as digits as its factorization.

11111011100087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 23.

Adding to 11111011100087 its reverse (78000111011111), we get a palindrome (89111122111198).

The spelling of 11111011100087 in words is "eleven trillion, one hundred eleven billion, eleven million, one hundred thousand, eighty-seven".