11199685723 has 2 divisors, whose sum is σ = 11199685724. Its totient is φ = 11199685722.

The previous prime is 11199685709. The next prime is 11199685741. The reversal of 11199685723 is 32758699111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11199685723 is a prime.

It is not a weakly prime, because it can be changed into another prime (11199685823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599842861 + 5599842862.

It is an arithmetic number, because the mean of its divisors is an integer number (5599842862).

Almost surely, 2^11199685723 is an apocalyptic number.

11199685723 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199685723 is an equidigital number, since it uses as much as digits as its factorization.

11199685723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 52.

The spelling of 11199685723 in words is "eleven billion, one hundred ninety-nine million, six hundred eighty-five thousand, seven hundred twenty-three".