312443100431330 has 48 divisors (see below), whose sum is σ = 620737579361592. Its totient is φ = 113144238451200.

The previous prime is 312443100431321. The next prime is 312443100431353. The reversal of 312443100431330 is 33134001344213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 312436274201689 + 6826229641 = 17675867^2 + 82621^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 535429217 + ... + 536012436.

Almost surely, 2^{312443100431330} is an apocalyptic number.

312443100431330 is a deficient number, since it is larger than the sum of its proper divisors (308294478930262).

312443100431330 is a wasteful number, since it uses less digits than its factorization.

312443100431330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071441923 (or 1071441912 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 312443100431330 its reverse (33134001344213), we get a palindrome (345577101775543).

The spelling of 312443100431330 in words is "three hundred twelve trillion, four hundred forty-three billion, one hundred million, four hundred thirty-one thousand, three hundred thirty".