312230320042 has 16 divisors (see below), whose sum is σ = 478598212872. Its totient is φ = 152715064320.

The previous prime is 312230319931. The next prime is 312230320121. The reversal of 312230320042 is 240023032213.

It can be written as a sum of positive squares in 4 ways, for example, as 155882042761 + 156348277281 = 394819^2 + 395409^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312230319995 and 312230320022.

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 in 7 ways as a sum of consecutive naturals, for example, 4334559 + ... + 4406002.

Almost surely, 2^312230320042 is an apocalyptic number.

312230320042 is a deficient number, since it is larger than the sum of its proper divisors (166367892830).

312230320042 is a wasteful number, since it uses less digits than its factorization.

312230320042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8740953.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 312230320042 its reverse (240023032213), we get a palindrome (552253352255).

The spelling of 312230320042 in words is "three hundred twelve billion, two hundred thirty million, three hundred twenty thousand, forty-two".