12343312013 has 4 divisors (see below), whose sum is σ = 12343809180. Its totient is φ = 12342814848.

The previous prime is 12343312001. The next prime is 12343312039. The reversal of 12343312013 is 31021334321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9624002404 + 2719309609 = 98102^2 + 52147^2 .

It is a cyclic number.

It is not a de Polignac number, because 12343312013 - 2³⁰ = 11269570189 is a prime.

It is a super-2 number, since 2×12343312013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12343312013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12343314013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209270 + ... + 261687.

It is an arithmetic number, because the mean of its divisors is an integer number (3085952295).

Almost surely, 2^12343312013 is an apocalyptic number.

It is an amenable number.

12343312013 is a deficient number, since it is larger than the sum of its proper divisors (497167).

12343312013 is an equidigital number, since it uses as much as digits as its factorization.

12343312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497166.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12343312013 its reverse (31021334321), we get a palindrome (43364646334).

The spelling of 12343312013 in words is "twelve billion, three hundred forty-three million, three hundred twelve thousand, thirteen".