321100002312 has 64 divisors (see below), whose sum is σ = 804144153600. Its totient is φ = 106847592960.

The previous prime is 321100002271. The next prime is 321100002319. The reversal of 321100002312 is 213200001123.

It is a super-2 number, since 2×321100002312² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321100002291 and 321100002300.

It is not an unprimeable number, because it can be changed into a prime (321100002319) 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, 65837218 + ... + 65842094.

It is an arithmetic number, because the mean of its divisors is an integer number (12564752400).

Almost surely, 2^321100002312 is an apocalyptic number.

It is an amenable number.

321100002312 is an abundant number, since it is smaller than the sum of its proper divisors (483044151288).

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

321100002312 is a wasteful number, since it uses less digits than its factorization.

321100002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9086 (or 9082 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 321100002312 its reverse (213200001123), we get a palindrome (534300003435).

The spelling of 321100002312 in words is "three hundred twenty-one billion, one hundred million, two thousand, three hundred twelve".