1277031097241 has 2 divisors, whose sum is σ = 1277031097242. Its totient is φ = 1277031097240.

The previous prime is 1277031097229. The next prime is 1277031097313. The reversal of 1277031097241 is 1427901307721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 709125673216 + 567905424025 = 842096^2 + 753595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1277031097241 - 2³⁰ = 1275957355417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1277031097192 and 1277031097201.

It is not a weakly prime, because it can be changed into another prime (1277031097141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638515548620 + 638515548621.

It is an arithmetic number, because the mean of its divisors is an integer number (638515548621).

Almost surely, 2^{1277031097241} is an apocalyptic number.

It is an amenable number.

1277031097241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1277031097241 is an equidigital number, since it uses as much as digits as its factorization.

1277031097241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The spelling of 1277031097241 in words is "one trillion, two hundred seventy-seven billion, thirty-one million, ninety-seven thousand, two hundred forty-one".