312457273611161 has 12 divisors (see below), whose sum is σ = 365571692787492. Its totient is φ = 266272424738208.

The previous prime is 312457273611139. The next prime is 312457273611163. The reversal of 312457273611161 is 161116372754213.

It can be written as a sum of positive squares in 2 ways, for example, as 234235188905536 + 78222084705625 = 15304744^2 + 8844325^2 .

It is not a de Polignac number, because 312457273611161 - 2⁶ = 312457273611097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312457273611163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18429699770 + ... + 18429716723.

It is an arithmetic number, because the mean of its divisors is an integer number (30464307732291).

Almost surely, 2^{312457273611161} is an apocalyptic number.

It is an amenable number.

312457273611161 is a deficient number, since it is larger than the sum of its proper divisors (53114419176331).

312457273611161 is a wasteful number, since it uses less digits than its factorization.

312457273611161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36859416680 (or 36859416673 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The spelling of 312457273611161 in words is "three hundred twelve trillion, four hundred fifty-seven billion, two hundred seventy-three million, six hundred eleven thousand, one hundred sixty-one".