11309863 has 2 divisors, whose sum is σ = 11309864. Its totient is φ = 11309862.

The previous prime is 11309849. The next prime is 11309869. The reversal of 11309863 is 36890311.

11309863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (36890311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11309863 - 2²¹ = 9212711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11309869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5654931 + 5654932.

It is an arithmetic number, because the mean of its divisors is an integer number (5654932).

Almost surely, 2^11309863 is an apocalyptic number.

11309863 is a deficient number, since it is larger than the sum of its proper divisors (1).

11309863 is an equidigital number, since it uses as much as digits as its factorization.

11309863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 11309863 is about 3363.0139755880. The cubic root of 11309863 is about 224.4669719915.

The spelling of 11309863 in words is "eleven million, three hundred nine thousand, eight hundred sixty-three".