210120110000989 has 2 divisors, whose sum is σ = 210120110000990. Its totient is φ = 210120110000988.

The previous prime is 210120110000947. The next prime is 210120110001029. The reversal of 210120110000989 is 989000011021012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199208101092100 + 10912008908889 = 14114110^2 + 3303333^2 .

It is a cyclic number.

It is not a de Polignac number, because 210120110000989 - 2⁹ = 210120110000477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210120110007989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060055000494 + 105060055000495.

It is an arithmetic number, because the mean of its divisors is an integer number (105060055000495).

Almost surely, 2^{210120110000989} is an apocalyptic number.

It is an amenable number.

210120110000989 is a deficient number, since it is larger than the sum of its proper divisors (1).

210120110000989 is an equidigital number, since it uses as much as digits as its factorization.

210120110000989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 210120110000989 in words is "two hundred ten trillion, one hundred twenty billion, one hundred ten million, nine hundred eighty-nine", and thus it is an aban number.