312343010430021 has 6 divisors (see below), whose sum is σ = 451162126176710. Its totient is φ = 208228673620008.

The previous prime is 312343010429959. The next prime is 312343010430079. The reversal of 312343010430021 is 120034010343213.

It is a happy number.

312343010430021 is a `hidden beast` number, since 3 + 1 + 2 + 34 + 301 + 0 + 4 + 300 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 191091529899396 + 121251480530625 = 13823586^2 + 11011425^2 .

It is not a de Polignac number, because 312343010430021 - 2²² = 312343006235717 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 (312343010435021) 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, 17352389468326 + ... + 17352389468343.

Almost surely, 2^{312343010430021} is an apocalyptic number.

It is an amenable number.

312343010430021 is a deficient number, since it is larger than the sum of its proper divisors (138819115746689).

312343010430021 is a wasteful number, since it uses less digits than its factorization.

312343010430021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34704778936675 (or 34704778936672 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 312343010430021 its reverse (120034010343213), we get a palindrome (432377020773234).

The spelling of 312343010430021 in words is "three hundred twelve trillion, three hundred forty-three billion, ten million, four hundred thirty thousand, twenty-one".