321212230203 has 16 divisors (see below), whose sum is σ = 431443509120. Its totient is φ = 212561468736.

The previous prime is 321212230147. The next prime is 321212230277. The reversal of 321212230203 is 302032212123.

It is a happy number.

It is not a de Polignac number, because 321212230203 - 2¹² = 321212226107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321212230203.

It is not an unprimeable number, because it can be changed into a prime (321212231203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7136776 + ... + 7181642.

It is an arithmetic number, because the mean of its divisors is an integer number (26965219320).

Almost surely, 2^321212230203 is an apocalyptic number.

321212230203 is a deficient number, since it is larger than the sum of its proper divisors (110231278917).

321212230203 is a wasteful number, since it uses less digits than its factorization.

321212230203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62426.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 321212230203 its reverse (302032212123), we get a palindrome (623244442326).

The spelling of 321212230203 in words is "three hundred twenty-one billion, two hundred twelve million, two hundred thirty thousand, two hundred three".