312696454321 has 2 divisors, whose sum is σ = 312696454322. Its totient is φ = 312696454320.

The previous prime is 312696454313. The next prime is 312696454333. The reversal of 312696454321 is 123454696213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163144095921 + 149552358400 = 403911^2 + 386720^2 .

It is an emirp because it is prime and its reverse (123454696213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312696454321 - 2³ = 312696454313 is a prime.

It is not a weakly prime, because it can be changed into another prime (312696454361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156348227160 + 156348227161.

It is an arithmetic number, because the mean of its divisors is an integer number (156348227161).

Almost surely, 2^312696454321 is an apocalyptic number.

It is an amenable number.

312696454321 is a deficient number, since it is larger than the sum of its proper divisors (1).

312696454321 is an equidigital number, since it uses as much as digits as its factorization.

312696454321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 46.

The spelling of 312696454321 in words is "three hundred twelve billion, six hundred ninety-six million, four hundred fifty-four thousand, three hundred twenty-one".