11005723 has 2 divisors, whose sum is σ = 11005724. Its totient is φ = 11005722.

The previous prime is 11005697. The next prime is 11005751. The reversal of 11005723 is 32750011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11005723 is a prime.

It is a super-2 number, since 2×11005723² = 242251877505458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11005723.

It is not a weakly prime, because it can be changed into another prime (11005793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5502861 + 5502862.

It is an arithmetic number, because the mean of its divisors is an integer number (5502862).

Almost surely, 2^11005723 is an apocalyptic number.

11005723 is a deficient number, since it is larger than the sum of its proper divisors (1).

11005723 is an equidigital number, since it uses as much as digits as its factorization.

11005723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 11005723 is about 3317.4874528776. The cubic root of 11005723 is about 222.4365715763.

Adding to 11005723 its reverse (32750011), we get a palindrome (43755734).

The spelling of 11005723 in words is "eleven million, five thousand, seven hundred twenty-three".