123030207 has 12 divisors (see below), whose sum is σ = 188164080. Its totient is φ = 77195328.

The previous prime is 123030203. The next prime is 123030223. The reversal of 123030207 is 702030321.

It is not a de Polignac number, because 123030207 - 2² = 123030203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123030207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 401907 + ... + 402212.

It is an arithmetic number, because the mean of its divisors is an integer number (15680340).

Almost surely, 2^123030207 is an apocalyptic number.

123030207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

123030207 is a deficient number, since it is larger than the sum of its proper divisors (65133873).

123030207 is a wasteful number, since it uses less digits than its factorization.

123030207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804142 (or 804139 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 123030207 is about 11091.8982595406. The cubic root of 123030207 is about 497.3596914161.

Adding to 123030207 its reverse (702030321), we get a palindrome (825060528).

The spelling of 123030207 in words is "one hundred twenty-three million, thirty thousand, two hundred seven".