11310320309 has 2 divisors, whose sum is σ = 11310320310. Its totient is φ = 11310320308.

The previous prime is 11310320279. The next prime is 11310320341. The reversal of 11310320309 is 90302301311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11268459409 + 41860900 = 106153^2 + 6470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11310320309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11310320369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655160154 + 5655160155.

It is an arithmetic number, because the mean of its divisors is an integer number (5655160155).

Almost surely, 2^11310320309 is an apocalyptic number.

It is an amenable number.

11310320309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11310320309 is an equidigital number, since it uses as much as digits as its factorization.

11310320309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 11310320309 in words is "eleven billion, three hundred ten million, three hundred twenty thousand, three hundred nine".