823003123 has 2 divisors, whose sum is σ = 823003124. Its totient is φ = 823003122.

The previous prime is 823003121. The next prime is 823003171. The reversal of 823003123 is 321300328.

It is a happy number.

823003123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823003123 - 2¹ = 823003121 is a prime.

Together with 823003121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 823003094 and 823003103.

It is not a weakly prime, because it can be changed into another prime (823003121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411501561 + 411501562.

It is an arithmetic number, because the mean of its divisors is an integer number (411501562).

Almost surely, 2^823003123 is an apocalyptic number.

823003123 is a deficient number, since it is larger than the sum of its proper divisors (1).

823003123 is an equidigital number, since it uses as much as digits as its factorization.

823003123 is an odious number, because the sum of its binary digits is odd.

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

The square root of 823003123 is about 28688.0310059788. The cubic root of 823003123 is about 937.1314099001.

The spelling of 823003123 in words is "eight hundred twenty-three million, three thousand, one hundred twenty-three".