120111000209989 has 2 divisors, whose sum is σ = 120111000209990. Its totient is φ = 120111000209988.

The previous prime is 120111000209971. The next prime is 120111000210017. The reversal of 120111000209989 is 989902000111021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113943178289889 + 6167821920100 = 10674417^2 + 2483510^2 .

It is an emirp because it is prime and its reverse (989902000111021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120111000209989 - 2²⁵ = 120110966655557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120111000209909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60055500104994 + 60055500104995.

It is an arithmetic number, because the mean of its divisors is an integer number (60055500104995).

Almost surely, 2^{120111000209989} is an apocalyptic number.

It is an amenable number.

120111000209989 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111000209989 is an equidigital number, since it uses as much as digits as its factorization.

120111000209989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 43.

The spelling of 120111000209989 in words is "one hundred twenty trillion, one hundred eleven billion, two hundred nine thousand, nine hundred eighty-nine".