11111010101089 has 2 divisors, whose sum is σ = 11111010101090. Its totient is φ = 11111010101088.

The previous prime is 11111010101069. The next prime is 11111010101119. The reversal of 11111010101089 is 98010101011111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10963118323600 + 147891777489 = 3311060^2 + 384567^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111010101089 - 2⁷ = 11111010100961 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111010101069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555505050544 + 5555505050545.

It is an arithmetic number, because the mean of its divisors is an integer number (5555505050545).

Almost surely, 2^{11111010101089} is an apocalyptic number.

It is an amenable number.

11111010101089 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111010101089 is an equidigital number, since it uses as much as digits as its factorization.

11111010101089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 25.

The spelling of 11111010101089 in words is "eleven trillion, one hundred eleven billion, ten million, one hundred one thousand, eighty-nine".