123204307 has 4 divisors (see below), whose sum is σ = 128561040. Its totient is φ = 117847576.

The previous prime is 123204271. The next prime is 123204313. The reversal of 123204307 is 703402321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123204307 - 2¹⁵ = 123171539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123204397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2678332 + ... + 2678377.

It is an arithmetic number, because the mean of its divisors is an integer number (32140260).

Almost surely, 2^123204307 is an apocalyptic number.

123204307 is a deficient number, since it is larger than the sum of its proper divisors (5356733).

123204307 is an equidigital number, since it uses as much as digits as its factorization.

123204307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356732.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 123204307 is about 11099.7435555962. The cubic root of 123204307 is about 497.5941853446.

Adding to 123204307 its reverse (703402321), we get a palindrome (826606628).

The spelling of 123204307 in words is "one hundred twenty-three million, two hundred four thousand, three hundred seven".