321031232312 has 96 divisors (see below), whose sum is σ = 768745041120. Its totient is φ = 122676111360.

The previous prime is 321031232309. The next prime is 321031232351. The reversal of 321031232312 is 213232130123.

It is a super-2 number, since 2×321031232312² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123389 + ... + 810732.

It is an arithmetic number, because the mean of its divisors is an integer number (8007760845).

Almost surely, 2^321031232312 is an apocalyptic number.

It is an amenable number.

321031232312 is an abundant number, since it is smaller than the sum of its proper divisors (447713808808).

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

321031232312 is a wasteful number, since it uses less digits than its factorization.

321031232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934189 (or 934166 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 321031232312 its reverse (213232130123), we get a palindrome (534263362435).

The spelling of 321031232312 in words is "three hundred twenty-one billion, thirty-one million, two hundred thirty-two thousand, three hundred twelve".