1306110235321 has 2 divisors, whose sum is σ = 1306110235322. Its totient is φ = 1306110235320.

The previous prime is 1306110235319. The next prime is 1306110235343. The reversal of 1306110235321 is 1235320116031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1052029719225 + 254080516096 = 1025685^2 + 504064^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306110235321 - 2¹ = 1306110235319 is a prime.

Together with 1306110235319, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1306110235321.

It is not a weakly prime, because it can be changed into another prime (1306110235621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653055117660 + 653055117661.

It is an arithmetic number, because the mean of its divisors is an integer number (653055117661).

Almost surely, 2^{1306110235321} is an apocalyptic number.

It is an amenable number.

1306110235321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306110235321 is an equidigital number, since it uses as much as digits as its factorization.

1306110235321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 1306110235321 in words is "one trillion, three hundred six billion, one hundred ten million, two hundred thirty-five thousand, three hundred twenty-one".