120311189 has 2 divisors, whose sum is σ = 120311190. Its totient is φ = 120311188.

The previous prime is 120311167. The next prime is 120311197. The reversal of 120311189 is 981113021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120275089 + 36100 = 10967^2 + 190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120311189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120311129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60155594 + 60155595.

It is an arithmetic number, because the mean of its divisors is an integer number (60155595).

Almost surely, 2^120311189 is an apocalyptic number.

It is an amenable number.

120311189 is a deficient number, since it is larger than the sum of its proper divisors (1).

120311189 is an equidigital number, since it uses as much as digits as its factorization.

120311189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 120311189 is about 10968.6457231511. The cubic root of 120311189 is about 493.6684124338.

The spelling of 120311189 in words is "one hundred twenty million, three hundred eleven thousand, one hundred eighty-nine".