312321212342 has 16 divisors (see below), whose sum is σ = 472921238880. Its totient is φ = 154682516352.

The previous prime is 312321212341. The next prime is 312321212353. The reversal of 312321212342 is 243212123213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312321212341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63842 + ... + 792917.

It is an arithmetic number, because the mean of its divisors is an integer number (29557577430).

Almost surely, 2^312321212342 is an apocalyptic number.

312321212342 is a deficient number, since it is larger than the sum of its proper divisors (160600026538).

312321212342 is a wasteful number, since it uses less digits than its factorization.

312321212342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858487.

The product of its digits is 3456, while the sum is 26.

Adding to 312321212342 its reverse (243212123213), we get a palindrome (555533335555).

The spelling of 312321212342 in words is "three hundred twelve billion, three hundred twenty-one million, two hundred twelve thousand, three hundred forty-two".