321312102 has 8 divisors (see below), whose sum is σ = 642624216. Its totient is φ = 107104032.

The previous prime is 321312091. The next prime is 321312113. The reversal of 321312102 is 201213123.

It is an interprime number because it is at equal distance from previous prime (321312091) and next prime (321312113).

It is a sphenic number, since it is the product of 3 distinct primes.

321312102 is an admirable number.

It is a congruent number.

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, 26776003 + ... + 26776014.

It is an arithmetic number, because the mean of its divisors is an integer number (80328027).

Almost surely, 2^321312102 is an apocalyptic number.

321312102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

321312102 is a wasteful number, since it uses less digits than its factorization.

321312102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53552022.

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

The square root of 321312102 is about 17925.1806685456. The cubic root of 321312102 is about 684.9239633575.

Adding to 321312102 its reverse (201213123), we get a palindrome (522525225).

The spelling of 321312102 in words is "three hundred twenty-one million, three hundred twelve thousand, one hundred two".