13203823 has 8 divisors (see below), whose sum is σ = 13436480. Its totient is φ = 12972960.

The previous prime is 13203821. The next prime is 13203829. The reversal of 13203823 is 32830231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13203823 - 2¹ = 13203821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13203794 and 13203803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31153 + ... + 31573.

It is an arithmetic number, because the mean of its divisors is an integer number (1679560).

Almost surely, 2^13203823 is an apocalyptic number.

13203823 is a deficient number, since it is larger than the sum of its proper divisors (232657).

13203823 is an equidigital number, since it uses as much as digits as its factorization.

13203823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 13203823 is about 3633.7065098877. The cubic root of 13203823 is about 236.3559635890.

The spelling of 13203823 in words is "thirteen million, two hundred three thousand, eight hundred twenty-three".