321213442203 has 6 divisors (see below), whose sum is σ = 463974972084. Its totient is φ = 214142294796.

The previous prime is 321213442177. The next prime is 321213442213. The reversal of 321213442203 is 302244312123.

321213442203 is a `hidden beast` number, since 3 + 2 + 1 + 2 + 13 + 442 + 203 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-321213442203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321213442213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17845191225 + ... + 17845191242.

It is an arithmetic number, because the mean of its divisors is an integer number (77329162014).

Almost surely, 2^321213442203 is an apocalyptic number.

321213442203 is a deficient number, since it is larger than the sum of its proper divisors (142761529881).

321213442203 is a wasteful number, since it uses less digits than its factorization.

321213442203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35690382473 (or 35690382470 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 321213442203 its reverse (302244312123), we get a palindrome (623457754326).

The spelling of 321213442203 in words is "three hundred twenty-one billion, two hundred thirteen million, four hundred forty-two thousand, two hundred three".