312320003 has 4 divisors (see below), whose sum is σ = 313337640. Its totient is φ = 311302368.

The previous prime is 312319961. The next prime is 312320017. The reversal of 312320003 is 300023213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312320003 - 2¹⁴ = 312303619 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 312320003.

It is not an unprimeable number, because it can be changed into a prime (312320023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508358 + ... + 508971.

It is an arithmetic number, because the mean of its divisors is an integer number (78334410).

Almost surely, 2^312320003 is an apocalyptic number.

312320003 is a deficient number, since it is larger than the sum of its proper divisors (1017637).

312320003 is a wasteful number, since it uses less digits than its factorization.

312320003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017636.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 312320003 is about 17672.5777123769. The cubic root of 312320003 is about 678.4740892514.

Adding to 312320003 its reverse (300023213), we get a palindrome (612343216).

The spelling of 312320003 in words is "three hundred twelve million, three hundred twenty thousand, three".