102111001189 has 2 divisors, whose sum is σ = 102111001190. Its totient is φ = 102111001188.

The previous prime is 102111001169. The next prime is 102111001229. The reversal of 102111001189 is 981100111201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98012824900 + 4098176289 = 313070^2 + 64017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102111001189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102111001169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055500594 + 51055500595.

It is an arithmetic number, because the mean of its divisors is an integer number (51055500595).

Almost surely, 2^102111001189 is an apocalyptic number.

It is an amenable number.

102111001189 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111001189 is an equidigital number, since it uses as much as digits as its factorization.

102111001189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 102111001189 in words is "one hundred two billion, one hundred eleven million, one thousand, one hundred eighty-nine".