123312120307 has 2 divisors, whose sum is σ = 123312120308. Its totient is φ = 123312120306.

The previous prime is 123312120299. The next prime is 123312120313. The reversal of 123312120307 is 703021213321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123312120307 - 2³ = 123312120299 is a prime.

It is not a weakly prime, because it can be changed into another prime (123312127307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61656060153 + 61656060154.

It is an arithmetic number, because the mean of its divisors is an integer number (61656060154).

Almost surely, 2^123312120307 is an apocalyptic number.

123312120307 is a deficient number, since it is larger than the sum of its proper divisors (1).

123312120307 is an equidigital number, since it uses as much as digits as its factorization.

123312120307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 123312120307 its reverse (703021213321), we get a palindrome (826333333628).

The spelling of 123312120307 in words is "one hundred twenty-three billion, three hundred twelve million, one hundred twenty thousand, three hundred seven".