120312323009 has 2 divisors, whose sum is σ = 120312323010. Its totient is φ = 120312323008.

The previous prime is 120312322981. The next prime is 120312323011. The reversal of 120312323009 is 900323213021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74336386609 + 45975936400 = 272647^2 + 214420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120312323009 is a prime.

Together with 120312323011, 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 (120312323029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60156161504 + 60156161505.

It is an arithmetic number, because the mean of its divisors is an integer number (60156161505).

Almost surely, 2^120312323009 is an apocalyptic number.

It is an amenable number.

120312323009 is a deficient number, since it is larger than the sum of its proper divisors (1).

120312323009 is an equidigital number, since it uses as much as digits as its factorization.

120312323009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 120312323009 in words is "one hundred twenty billion, three hundred twelve million, three hundred twenty-three thousand, nine".