11565555140323 has 2 divisors, whose sum is σ = 11565555140324. Its totient is φ = 11565555140322.

The previous prime is 11565555140317. The next prime is 11565555140329. The reversal of 11565555140323 is 32304155556511.

It is a balanced prime because it is at equal distance from previous prime (11565555140317) and next prime (11565555140329).

It is a cyclic number.

It is not a de Polignac number, because 11565555140323 - 2⁴¹ = 9366531884771 is a prime.

It is not a weakly prime, because it can be changed into another prime (11565555140329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5782777570161 + 5782777570162.

It is an arithmetic number, because the mean of its divisors is an integer number (5782777570162).

Almost surely, 2^{11565555140323} is an apocalyptic number.

11565555140323 is a deficient number, since it is larger than the sum of its proper divisors (1).

11565555140323 is an equidigital number, since it uses as much as digits as its factorization.

11565555140323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 11565555140323 in words is "eleven trillion, five hundred sixty-five billion, five hundred fifty-five million, one hundred forty thousand, three hundred twenty-three".