312320330 has 32 divisors (see below), whose sum is σ = 659857536. Its totient is φ = 104186304.

The previous prime is 312320321. The next prime is 312320341. The reversal of 312320330 is 33023213.

It is a junction number, because it is equal to n+sod(n) for n = 312320299 and 312320308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57704 + ... + 62883.

It is an arithmetic number, because the mean of its divisors is an integer number (20620548).

Almost surely, 2^312320330 is an apocalyptic number.

312320330 is an abundant number, since it is smaller than the sum of its proper divisors (347537206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312320330 is a wasteful number, since it uses less digits than its factorization.

312320330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120638.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 312320330 is about 17672.5869639960. The cubic root of 312320330 is about 678.4743260395.

Adding to 312320330 its reverse (33023213), we get a palindrome (345343543).

The spelling of 312320330 in words is "three hundred twelve million, three hundred twenty thousand, three hundred thirty".