123395803 has 2 divisors, whose sum is σ = 123395804. Its totient is φ = 123395802.

The previous prime is 123395801. The next prime is 123395813. The reversal of 123395803 is 308593321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123395803 - 2¹ = 123395801 is a prime.

Together with 123395801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (123395801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61697901 + 61697902.

It is an arithmetic number, because the mean of its divisors is an integer number (61697902).

Almost surely, 2^123395803 is an apocalyptic number.

123395803 is a deficient number, since it is larger than the sum of its proper divisors (1).

123395803 is an equidigital number, since it uses as much as digits as its factorization.

123395803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 123395803 is about 11108.3663515388. The cubic root of 123395803 is about 497.8518548282.

The spelling of 123395803 in words is "one hundred twenty-three million, three hundred ninety-five thousand, eight hundred three".