12310312019 has 4 divisors (see below), whose sum is σ = 12310575744. Its totient is φ = 12310048296.

The previous prime is 12310312013. The next prime is 12310312037. The reversal of 12310312019 is 91021301321.

12310312019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91021301321 = 409 ⋅222545969.

It is a cyclic number.

It is not a de Polignac number, because 12310312019 - 2¹² = 12310307923 is a prime.

It is a super-2 number, since 2×12310312019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12310311985 and 12310312003.

It is not an unprimeable number, because it can be changed into a prime (12310312013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40952 + ... + 162165.

It is an arithmetic number, because the mean of its divisors is an integer number (3077643936).

Almost surely, 2^12310312019 is an apocalyptic number.

12310312019 is a deficient number, since it is larger than the sum of its proper divisors (263725).

12310312019 is an equidigital number, since it uses as much as digits as its factorization.

12310312019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263724.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 12310312019 in words is "twelve billion, three hundred ten million, three hundred twelve thousand, nineteen".