120342977 has 2 divisors, whose sum is σ = 120342978. Its totient is φ = 120342976.

The previous prime is 120342947. The next prime is 120342997. The reversal of 120342977 is 779243021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114147856 + 6195121 = 10684^2 + 2489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120342977 is a prime.

It is a super-2 number, since 2×120342977² = 28964864226445058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120342917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60171488 + 60171489.

It is an arithmetic number, because the mean of its divisors is an integer number (60171489).

Almost surely, 2^120342977 is an apocalyptic number.

It is an amenable number.

120342977 is a deficient number, since it is larger than the sum of its proper divisors (1).

120342977 is an equidigital number, since it uses as much as digits as its factorization.

120342977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 120342977 is about 10970.0946668659. The cubic root of 120342977 is about 493.7118867766.

Adding to 120342977 its reverse (779243021), we get a palindrome (899585998).

The spelling of 120342977 in words is "one hundred twenty million, three hundred forty-two thousand, nine hundred seventy-seven".