120099977 has 2 divisors, whose sum is σ = 120099978. Its totient is φ = 120099976.

The previous prime is 120099971. The next prime is 120100003. The reversal of 120099977 is 779990021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77862976 + 42237001 = 8824^2 + 6499^2 .

It is a cyclic number.

It is not a de Polignac number, because 120099977 - 2¹² = 120095881 is a prime.

It is not a weakly prime, because it can be changed into another prime (120099971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60049988 + 60049989.

It is an arithmetic number, because the mean of its divisors is an integer number (60049989).

Almost surely, 2^120099977 is an apocalyptic number.

It is an amenable number.

120099977 is a deficient number, since it is larger than the sum of its proper divisors (1).

120099977 is an equidigital number, since it uses as much as digits as its factorization.

120099977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 120099977 is about 10959.0135048735. The cubic root of 120099977 is about 493.3793571116.

The spelling of 120099977 in words is "one hundred twenty million, ninety-nine thousand, nine hundred seventy-seven".