312312143404 has 6 divisors (see below), whose sum is σ = 546546250964. Its totient is φ = 156156071700.

The previous prime is 312312143357. The next prime is 312312143411. The reversal of 312312143404 is 404341213213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39039017922 + ... + 39039017929.

Almost surely, 2^312312143404 is an apocalyptic number.

It is an amenable number.

312312143404 is a deficient number, since it is larger than the sum of its proper divisors (234234107560).

312312143404 is a wasteful number, since it uses less digits than its factorization.

312312143404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78078035855 (or 78078035853 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 312312143404 its reverse (404341213213), we get a palindrome (716653356617).

The spelling of 312312143404 in words is "three hundred twelve billion, three hundred twelve million, one hundred forty-three thousand, four hundred four".