1241320277 has 2 divisors, whose sum is σ = 1241320278. Its totient is φ = 1241320276.

The previous prime is 1241320271. The next prime is 1241320391. The reversal of 1241320277 is 7720231421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1191561361 + 49758916 = 34519^2 + 7054^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241320277 - 2⁸ = 1241320021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241320271) 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, 620660138 + 620660139.

It is an arithmetic number, because the mean of its divisors is an integer number (620660139).

Almost surely, 2^1241320277 is an apocalyptic number.

It is an amenable number.

1241320277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241320277 is an equidigital number, since it uses as much as digits as its factorization.

1241320277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 1241320277 is about 35232.3754095576. The cubic root of 1241320277 is about 1074.7182321196.

Adding to 1241320277 its reverse (7720231421), we get a palindrome (8961551698).

The spelling of 1241320277 in words is "one billion, two hundred forty-one million, three hundred twenty thousand, two hundred seventy-seven".