120312061 has 2 divisors, whose sum is σ = 120312062. Its totient is φ = 120312060.

The previous prime is 120312019. The next prime is 120312121. The reversal of 120312061 is 160213021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89019225 + 31292836 = 9435^2 + 5594^2 .

It is an emirp because it is prime and its reverse (160213021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120312061 - 2¹¹ = 120310013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120312461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60156030 + 60156031.

It is an arithmetic number, because the mean of its divisors is an integer number (60156031).

Almost surely, 2^120312061 is an apocalyptic number.

It is an amenable number.

120312061 is a deficient number, since it is larger than the sum of its proper divisors (1).

120312061 is an equidigital number, since it uses as much as digits as its factorization.

120312061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 120312061 is about 10968.6854727447. The cubic root of 120312061 is about 493.6696051126.

Adding to 120312061 its reverse (160213021), we get a palindrome (280525082).

The spelling of 120312061 in words is "one hundred twenty million, three hundred twelve thousand, sixty-one".