123030203 has 2 divisors, whose sum is σ = 123030204. Its totient is φ = 123030202.

The previous prime is 123030191. The next prime is 123030223. The reversal of 123030203 is 302030321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123030203 - 2²⁴ = 106252987 is a prime.

It is not a weakly prime, because it can be changed into another prime (123030223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515101 + 61515102.

It is an arithmetic number, because the mean of its divisors is an integer number (61515102).

Almost surely, 2^123030203 is an apocalyptic number.

123030203 is a deficient number, since it is larger than the sum of its proper divisors (1).

123030203 is an equidigital number, since it uses as much as digits as its factorization.

123030203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 123030203 is about 11091.8980792288. The cubic root of 123030203 is about 497.3596860260.

Adding to 123030203 its reverse (302030321), we get a palindrome (425060524).

The spelling of 123030203 in words is "one hundred twenty-three million, thirty thousand, two hundred three".