321123322312 has 16 divisors (see below), whose sum is σ = 648422093340. Its totient is φ = 148210764096.

The previous prime is 321123322283. The next prime is 321123322321. The reversal of 321123322312 is 213223321123.

It can be written as a sum of positive squares in 2 ways, for example, as 314054884836 + 7068437476 = 560406^2 + 84074^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543862023 + ... + 1543862230.

Almost surely, 2^321123322312 is an apocalyptic number.

It is an amenable number.

321123322312 is an abundant number, since it is smaller than the sum of its proper divisors (327298771028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321123322312 is a wasteful number, since it uses less digits than its factorization.

321123322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087724272 (or 3087724268 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 321123322312 its reverse (213223321123), we get a palindrome (534346643435).

The spelling of 321123322312 in words is "three hundred twenty-one billion, one hundred twenty-three million, three hundred twenty-two thousand, three hundred twelve".