312030343 has 12 divisors (see below), whose sum is σ = 324471888. Its totient is φ = 300050240.

The previous prime is 312030337. The next prime is 312030347. The reversal of 312030343 is 343030213.

It is a de Polignac number, because none of the positive numbers 2^k-312030343 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 312030343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312030347) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 260955 + ... + 262147.

It is an arithmetic number, because the mean of its divisors is an integer number (27039324).

Almost surely, 2^312030343 is an apocalyptic number.

312030343 is a deficient number, since it is larger than the sum of its proper divisors (12441545).

312030343 is a wasteful number, since it uses less digits than its factorization.

312030343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 312030343 is about 17664.3806288248. The cubic root of 312030343 is about 678.2642749689.

Adding to 312030343 its reverse (343030213), we get a palindrome (655060556).

The spelling of 312030343 in words is "three hundred twelve million, thirty thousand, three hundred forty-three".