312334021 has 8 divisors (see below), whose sum is σ = 324952064. Its totient is φ = 299874960.

The previous prime is 312334003. The next prime is 312334037. The reversal of 312334021 is 120433213.

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 312334021 - 2⁷ = 312333893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312334021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312334051) 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, 35730 + ... + 43603.

It is an arithmetic number, because the mean of its divisors is an integer number (40619008).

Almost surely, 2^312334021 is an apocalyptic number.

312334021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

312334021 is a deficient number, since it is larger than the sum of its proper divisors (12618043).

312334021 is a wasteful number, since it uses less digits than its factorization.

312334021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79491.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 312334021 is about 17672.9743110774. The cubic root of 312334021 is about 678.4842398527.

Adding to 312334021 its reverse (120433213), we get a palindrome (432767234).

The spelling of 312334021 in words is "three hundred twelve million, three hundred thirty-four thousand, twenty-one".