11100111119989 has 2 divisors, whose sum is σ = 11100111119990. Its totient is φ = 11100111119988.

The previous prime is 11100111119947. The next prime is 11100111120037. The reversal of 11100111119989 is 98991111100111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9363342961764 + 1736768158225 = 3059958^2 + 1317865^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100111119989 - 2⁹ = 11100111119477 is a prime.

It is a super-2 number, since 2×11100111119989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100111119939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550055559994 + 5550055559995.

It is an arithmetic number, because the mean of its divisors is an integer number (5550055559995).

Almost surely, 2^{11100111119989} is an apocalyptic number.

It is an amenable number.

11100111119989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100111119989 is an equidigital number, since it uses as much as digits as its factorization.

11100111119989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 43.

The spelling of 11100111119989 in words is "eleven trillion, one hundred billion, one hundred eleven million, one hundred nineteen thousand, nine hundred eighty-nine".