321312212203303 has 4 divisors (see below), whose sum is σ = 321415561261480. Its totient is φ = 321208863145128.

The previous prime is 321312212203277. The next prime is 321312212203331. The reversal of 321312212203303 is 303302212213123.

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 321312212203303 - 2³⁷ = 321174773249831 is a prime.

It is a super-3 number, since 3×321312212203303³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321312212203363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51674524425 + ... + 51674530642.

It is an arithmetic number, because the mean of its divisors is an integer number (80353890315370).

Almost surely, 2^{321312212203303} is an apocalyptic number.

321312212203303 is a deficient number, since it is larger than the sum of its proper divisors (103349058177).

321312212203303 is a wasteful number, since it uses less digits than its factorization.

321312212203303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103349058176.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 321312212203303 its reverse (303302212213123), we get a palindrome (624614424416426).

The spelling of 321312212203303 in words is "three hundred twenty-one trillion, three hundred twelve billion, two hundred twelve million, two hundred three thousand, three hundred three".