312530552117 has 6 divisors (see below), whose sum is σ = 363555948438. Its totient is φ = 267883330344.

The previous prime is 312530552107. The next prime is 312530552129. The reversal of 312530552117 is 711255035213.

It can be written as a sum of positive squares in only one way, i.e., 312331205956 + 199346161 = 558866^2 + 14119^2 .

It is not a de Polignac number, because 312530552117 - 2³⁴ = 295350682933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312530552107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3189087218 + ... + 3189087315.

It is an arithmetic number, because the mean of its divisors is an integer number (60592658073).

Almost surely, 2^312530552117 is an apocalyptic number.

It is an amenable number.

312530552117 is a deficient number, since it is larger than the sum of its proper divisors (51025396321).

312530552117 is an equidigital number, since it uses as much as digits as its factorization.

312530552117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378174547 (or 6378174540 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The spelling of 312530552117 in words is "three hundred twelve billion, five hundred thirty million, five hundred fifty-two thousand, one hundred seventeen".