111101210189 has 2 divisors, whose sum is σ = 111101210190. Its totient is φ = 111101210188.

The previous prime is 111101210137. The next prime is 111101210191. The reversal of 111101210189 is 981012101111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78237684100 + 32863526089 = 279710^2 + 181283^2 .

It is a cyclic number.

It is not a de Polignac number, because 111101210189 - 2²⁴ = 111084432973 is a prime.

It is a super-3 number, since 3×111101210189³ (a number of 34 digits) contains 333 as substring.

Together with 111101210191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101215189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550605094 + 55550605095.

It is an arithmetic number, because the mean of its divisors is an integer number (55550605095).

Almost surely, 2^111101210189 is an apocalyptic number.

It is an amenable number.

111101210189 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101210189 is an equidigital number, since it uses as much as digits as its factorization.

111101210189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 26.

The spelling of 111101210189 in words is "one hundred eleven billion, one hundred one million, two hundred ten thousand, one hundred eighty-nine".