1267105063397 has 2 divisors, whose sum is σ = 1267105063398. Its totient is φ = 1267105063396.

The previous prime is 1267105063369. The next prime is 1267105063409. The reversal of 1267105063397 is 7933605017621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 667895928001 + 599209135396 = 817249^2 + 774086^2 .

It is a cyclic number.

It is not a de Polignac number, because 1267105063397 - 2³⁴ = 1249925194213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1267105063307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633552531698 + 633552531699.

It is an arithmetic number, because the mean of its divisors is an integer number (633552531699).

Almost surely, 2^{1267105063397} is an apocalyptic number.

It is an amenable number.

1267105063397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267105063397 is an equidigital number, since it uses as much as digits as its factorization.

1267105063397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The spelling of 1267105063397 in words is "one trillion, two hundred sixty-seven billion, one hundred five million, sixty-three thousand, three hundred ninety-seven".