11605205723 has 2 divisors, whose sum is σ = 11605205724. Its totient is φ = 11605205722.

The previous prime is 11605205713. The next prime is 11605205789. The reversal of 11605205723 is 32750250611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11605205723 - 2¹⁴ = 11605189339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11605205723.

It is not a weakly prime, because it can be changed into another prime (11605205713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5802602861 + 5802602862.

It is an arithmetic number, because the mean of its divisors is an integer number (5802602862).

Almost surely, 2^11605205723 is an apocalyptic number.

11605205723 is a deficient number, since it is larger than the sum of its proper divisors (1).

11605205723 is an equidigital number, since it uses as much as digits as its factorization.

11605205723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 11605205723 in words is "eleven billion, six hundred five million, two hundred five thousand, seven hundred twenty-three".