312223222303 has 4 divisors (see below), whose sum is σ = 312225203248. Its totient is φ = 312221241360.

The previous prime is 312223222217. The next prime is 312223222331. The reversal of 312223222303 is 303222322213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303222322213 = 17 ⋅17836607189.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312223222303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223222373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731478 + ... + 1076803.

It is an arithmetic number, because the mean of its divisors is an integer number (78056300812).

Almost surely, 2^312223222303 is an apocalyptic number.

312223222303 is a deficient number, since it is larger than the sum of its proper divisors (1980945).

312223222303 is a wasteful number, since it uses less digits than its factorization.

312223222303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980944.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 312223222303 its reverse (303222322213), we get a palindrome (615445544516).

The spelling of 312223222303 in words is "three hundred twelve billion, two hundred twenty-three million, two hundred twenty-two thousand, three hundred three".