11110110989 has 2 divisors, whose sum is σ = 11110110990. Its totient is φ = 11110110988.

The previous prime is 11110110971. The next prime is 11110111009. The reversal of 11110110989 is 98901101111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6842102089 + 4268008900 = 82717^2 + 65330^2 .

It is a cyclic number.

It is not a de Polignac number, because 11110110989 - 2¹² = 11110106893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11110110919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555055494 + 5555055495.

It is an arithmetic number, because the mean of its divisors is an integer number (5555055495).

Almost surely, 2^11110110989 is an apocalyptic number.

It is an amenable number.

11110110989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110110989 is an equidigital number, since it uses as much as digits as its factorization.

11110110989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 32.

The spelling of 11110110989 in words is "eleven billion, one hundred ten million, one hundred ten thousand, nine hundred eighty-nine".