1312100220097 has 2 divisors, whose sum is σ = 1312100220098. Its totient is φ = 1312100220096.

The previous prime is 1312100220007. The next prime is 1312100220127. The reversal of 1312100220097 is 7900220012131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 923692065921 + 388408154176 = 961089^2 + 623224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312100220097 - 2¹⁵ = 1312100187329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312100220007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656050110048 + 656050110049.

It is an arithmetic number, because the mean of its divisors is an integer number (656050110049).

Almost surely, 2^{1312100220097} is an apocalyptic number.

It is an amenable number.

1312100220097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312100220097 is an equidigital number, since it uses as much as digits as its factorization.

1312100220097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 1312100220097 in words is "one trillion, three hundred twelve billion, one hundred million, two hundred twenty thousand, ninety-seven".