12312312023309 has 8 divisors (see below), whose sum is σ = 12328467224472. Its totient is φ = 12296157410880.

The previous prime is 12312312023257. The next prime is 12312312023411. The reversal of 12312312023309 is 90332021321321.

12312312023309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 730303558084 + 11582008465225 = 854578^2 + 3403235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12312312023309 is a prime.

It is a super-2 number, since 2×12312312023309² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312312029309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55406747 + ... + 55628519.

It is an arithmetic number, because the mean of its divisors is an integer number (1541058403059).

Almost surely, 2^{12312312023309} is an apocalyptic number.

It is an amenable number.

12312312023309 is a deficient number, since it is larger than the sum of its proper divisors (16155201163).

12312312023309 is an equidigital number, since it uses as much as digits as its factorization.

12312312023309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294367.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 12312312023309 in words is "twelve trillion, three hundred twelve billion, three hundred twelve million, twenty-three thousand, three hundred nine".