312321120311 has 8 divisors (see below), whose sum is σ = 316121760240. Its totient is φ = 308537486208.

The previous prime is 312321120271. The next prime is 312321120329. The reversal of 312321120311 is 113021123213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312321120311 - 2¹⁸ = 312320858167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312321170311) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4214501 + ... + 4287966.

It is an arithmetic number, because the mean of its divisors is an integer number (39515220030).

Almost surely, 2^312321120311 is an apocalyptic number.

312321120311 is a deficient number, since it is larger than the sum of its proper divisors (3800639929).

312321120311 is a wasteful number, since it uses less digits than its factorization.

312321120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8502913.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312321120311 its reverse (113021123213), we get a palindrome (425342243524).

The spelling of 312321120311 in words is "three hundred twelve billion, three hundred twenty-one million, one hundred twenty thousand, three hundred eleven".