123530207 has 2 divisors, whose sum is σ = 123530208. Its totient is φ = 123530206.

The previous prime is 123530189. The next prime is 123530219. The reversal of 123530207 is 702035321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123530207 - 2⁸ = 123529951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123530237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61765103 + 61765104.

It is an arithmetic number, because the mean of its divisors is an integer number (61765104).

Almost surely, 2^123530207 is an apocalyptic number.

123530207 is a deficient number, since it is larger than the sum of its proper divisors (1).

123530207 is an equidigital number, since it uses as much as digits as its factorization.

123530207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 123530207 is about 11114.4143795344. The cubic root of 123530207 is about 498.0325443912.

Adding to 123530207 its reverse (702035321), we get a palindrome (825565528).

The spelling of 123530207 in words is "one hundred twenty-three million, five hundred thirty thousand, two hundred seven".