312204203 has 2 divisors, whose sum is σ = 312204204. Its totient is φ = 312204202.

The previous prime is 312204199. The next prime is 312204239. The reversal of 312204203 is 302402213.

It is a weak prime.

It is an emirp because it is prime and its reverse (302402213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312204203 - 2² = 312204199 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312204293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156102101 + 156102102.

It is an arithmetic number, because the mean of its divisors is an integer number (156102102).

Almost surely, 2^312204203 is an apocalyptic number.

312204203 is a deficient number, since it is larger than the sum of its proper divisors (1).

312204203 is an equidigital number, since it uses as much as digits as its factorization.

312204203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 312204203 is about 17669.3011463385. The cubic root of 312204203 is about 678.3902254675.

Adding to 312204203 its reverse (302402213), we get a palindrome (614606416).

The spelling of 312204203 in words is "three hundred twelve million, two hundred four thousand, two hundred three".