321312101 has 8 divisors (see below), whose sum is σ = 355754784. Its totient is φ = 287741520.

The previous prime is 321312091. The next prime is 321312113. The reversal of 321312101 is 101213123.

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

It is not a de Polignac number, because 321312101 - 2⁶ = 321312037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321312191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217250 + ... + 218723.

It is an arithmetic number, because the mean of its divisors is an integer number (44469348).

Almost surely, 2^321312101 is an apocalyptic number.

It is an amenable number.

321312101 is a deficient number, since it is larger than the sum of its proper divisors (34442683).

321312101 is a wasteful number, since it uses less digits than its factorization.

321312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436051.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 321312101 is about 17925.1806406519. The cubic root of 321312101 is about 684.9239626470.

Adding to 321312101 its reverse (101213123), we get a palindrome (422525224).

The spelling of 321312101 in words is "three hundred twenty-one million, three hundred twelve thousand, one hundred one".