11101109989 has 2 divisors, whose sum is σ = 11101109990. Its totient is φ = 11101109988.

The previous prime is 11101109983. The next prime is 11101110047. The reversal of 11101109989 is 98990110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10397269089 + 703840900 = 101967^2 + 26530^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101109989 - 2⁷ = 11101109861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101109983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550554994 + 5550554995.

It is an arithmetic number, because the mean of its divisors is an integer number (5550554995).

Almost surely, 2^11101109989 is an apocalyptic number.

It is an amenable number.

11101109989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101109989 is an equidigital number, since it uses as much as digits as its factorization.

11101109989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 11101109989 in words is "eleven billion, one hundred one million, one hundred nine thousand, nine hundred eighty-nine".