10111111189 has 2 divisors, whose sum is σ = 10111111190. Its totient is φ = 10111111188.

The previous prime is 10111111177. The next prime is 10111111237. The reversal of 10111111189 is 98111111101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8437892164 + 1673219025 = 91858^2 + 40905^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111111189 - 2²⁵ = 10077556757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111111159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055555594 + 5055555595.

It is an arithmetic number, because the mean of its divisors is an integer number (5055555595).

Almost surely, 2^10111111189 is an apocalyptic number.

It is an amenable number.

10111111189 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111111189 is an equidigital number, since it uses as much as digits as its factorization.

10111111189 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 10111111189 in words is "ten billion, one hundred eleven million, one hundred eleven thousand, one hundred eighty-nine".