1310231221097 has 2 divisors, whose sum is σ = 1310231221098. Its totient is φ = 1310231221096.

The previous prime is 1310231221027. The next prime is 1310231221109. The reversal of 1310231221097 is 7901221320131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1285890228841 + 24340992256 = 1133971^2 + 156016^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310231221097 - 2¹⁰ = 1310231220073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310231221027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655115610548 + 655115610549.

It is an arithmetic number, because the mean of its divisors is an integer number (655115610549).

Almost surely, 2^{1310231221097} is an apocalyptic number.

It is an amenable number.

1310231221097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310231221097 is an equidigital number, since it uses as much as digits as its factorization.

1310231221097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 1310231221097 in words is "one trillion, three hundred ten billion, two hundred thirty-one million, two hundred twenty-one thousand, ninety-seven".