12040123307 has 2 divisors, whose sum is σ = 12040123308. Its totient is φ = 12040123306.

The previous prime is 12040123289. The next prime is 12040123309. The reversal of 12040123307 is 70332104021.

It is a strong prime.

It is an emirp because it is prime and its reverse (70332104021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12040123307 - 2²⁰ = 12039074731 is a prime.

Together with 12040123309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12040123309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020061653 + 6020061654.

It is an arithmetic number, because the mean of its divisors is an integer number (6020061654).

Almost surely, 2^12040123307 is an apocalyptic number.

12040123307 is a deficient number, since it is larger than the sum of its proper divisors (1).

12040123307 is an equidigital number, since it uses as much as digits as its factorization.

12040123307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 12040123307 its reverse (70332104021), we get a palindrome (82372227328).

The spelling of 12040123307 in words is "twelve billion, forty million, one hundred twenty-three thousand, three hundred seven".