312132440042312 has 32 divisors (see below), whose sum is σ = 589179663675000. Its totient is φ = 155017875499008.

The previous prime is 312132440042287. The next prime is 312132440042333. The reversal of 312132440042312 is 213240044231213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 247829265848836 + 64303174193476 = 15742594^2 + 8018926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228455864 + ... + 229818072.

Almost surely, 2^{312132440042312} is an apocalyptic number.

It is an amenable number.

312132440042312 is a deficient number, since it is larger than the sum of its proper divisors (277047223632688).

312132440042312 is a wasteful number, since it uses less digits than its factorization.

312132440042312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554593 (or 1554589 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 312132440042312 its reverse (213240044231213), we get a palindrome (525372484273525).

The spelling of 312132440042312 in words is "three hundred twelve trillion, one hundred thirty-two billion, four hundred forty million, forty-two thousand, three hundred twelve".