120800089 has 2 divisors, whose sum is σ = 120800090. Its totient is φ = 120800088.

The previous prime is 120800083. The next prime is 120800107. The reversal of 120800089 is 980008021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118265625 + 2534464 = 10875^2 + 1592^2 .

It is an emirp because it is prime and its reverse (980008021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120800089 - 2¹³ = 120791897 is a prime.

It is not a weakly prime, because it can be changed into another prime (120800083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60400044 + 60400045.

It is an arithmetic number, because the mean of its divisors is an integer number (60400045).

Almost surely, 2^120800089 is an apocalyptic number.

It is an amenable number.

120800089 is a deficient number, since it is larger than the sum of its proper divisors (1).

120800089 is an equidigital number, since it uses as much as digits as its factorization.

120800089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 120800089 is about 10990.9093800286. The cubic root of 120800089 is about 494.3362037393.

The spelling of 120800089 in words is "one hundred twenty million, eight hundred thousand, eighty-nine".