312468509713 has 4 divisors (see below), whose sum is σ = 323243285940. Its totient is φ = 301693733488.

The previous prime is 312468509687. The next prime is 312468509719. The reversal of 312468509713 is 317905864213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317905864213 = 7 ⋅45415123459.

It can be written as a sum of positive squares in 2 ways, for example, as 200074606209 + 112393903504 = 447297^2 + 335252^2 .

It is a cyclic number.

It is not a de Polignac number, because 312468509713 - 2³⁷ = 175029556241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312468509719) 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, 5387388070 + ... + 5387388127.

It is an arithmetic number, because the mean of its divisors is an integer number (80810821485).

It is a 1-persistent number, because it is pandigital, but 2⋅312468509713 = 624937019426 is not.

Almost surely, 2^312468509713 is an apocalyptic number.

It is an amenable number.

312468509713 is a deficient number, since it is larger than the sum of its proper divisors (10774776227).

312468509713 is a wasteful number, since it uses less digits than its factorization.

312468509713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10774776226.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 312468509713 in words is "three hundred twelve billion, four hundred sixty-eight million, five hundred nine thousand, seven hundred thirteen".