11307823 has 4 divisors (see below), whose sum is σ = 11451040. Its totient is φ = 11164608.

The previous prime is 11307817. The next prime is 11307827. The reversal of 11307823 is 32870311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32870311 = 29 ⋅1133459.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11307823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11307827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71490 + ... + 71647.

It is an arithmetic number, because the mean of its divisors is an integer number (2862760).

Almost surely, 2^11307823 is an apocalyptic number.

11307823 is a deficient number, since it is larger than the sum of its proper divisors (143217).

11307823 is an equidigital number, since it uses as much as digits as its factorization.

11307823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143216.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 11307823 is about 3362.7106625459. The cubic root of 11307823 is about 224.4534752127.

The spelling of 11307823 in words is "eleven million, three hundred seven thousand, eight hundred twenty-three".