1305103051247 has 2 divisors, whose sum is σ = 1305103051248. Its totient is φ = 1305103051246.

The previous prime is 1305103051199. The next prime is 1305103051261. The reversal of 1305103051247 is 7421503015031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1305103051247 - 2⁸ = 1305103050991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305103051267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652551525623 + 652551525624.

It is an arithmetic number, because the mean of its divisors is an integer number (652551525624).

Almost surely, 2^{1305103051247} is an apocalyptic number.

1305103051247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305103051247 is an equidigital number, since it uses as much as digits as its factorization.

1305103051247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

Adding to 1305103051247 its reverse (7421503015031), we get a palindrome (8726606066278).

The spelling of 1305103051247 in words is "one trillion, three hundred five billion, one hundred three million, fifty-one thousand, two hundred forty-seven".