312320300203 has 4 divisors (see below), whose sum is σ = 328758210760. Its totient is φ = 295882389648.

The previous prime is 312320300197. The next prime is 312320300219. The reversal of 312320300203 is 302003023213.

It is a happy number.

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 312320300203 - 2¹⁷ = 312320169131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 16437910537 = 312320300203 / (3 + 1 + 2 + 3 + 2 + 0 + 3 + 0 + 0 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312320300263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8218955250 + ... + 8218955287.

It is an arithmetic number, because the mean of its divisors is an integer number (82189552690).

Almost surely, 2^312320300203 is an apocalyptic number.

312320300203 is a deficient number, since it is larger than the sum of its proper divisors (16437910557).

312320300203 is a wasteful number, since it uses less digits than its factorization.

312320300203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16437910556.

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

Adding to 312320300203 its reverse (302003023213), we get a palindrome (614323323416).

The spelling of 312320300203 in words is "three hundred twelve billion, three hundred twenty million, three hundred thousand, two hundred three".