123000203 has 2 divisors, whose sum is σ = 123000204. Its totient is φ = 123000202.

The previous prime is 123000197. The next prime is 123000211. The reversal of 123000203 is 302000321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123000203 - 2²² = 118805899 is a prime.

It is not a weakly prime, because it can be changed into another prime (123000233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61500101 + 61500102.

It is an arithmetic number, because the mean of its divisors is an integer number (61500102).

Almost surely, 2^123000203 is an apocalyptic number.

123000203 is a deficient number, since it is larger than the sum of its proper divisors (1).

123000203 is an equidigital number, since it uses as much as digits as its factorization.

123000203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 123000203 is about 11090.5456583524. The cubic root of 123000203 is about 497.3192569195.

Adding to 123000203 its reverse (302000321), we get a palindrome (425000524).

The spelling of 123000203 in words is "one hundred twenty-three million, two hundred three", and thus it is an aban number.