321213301 has 8 divisors (see below), whose sum is σ = 326044224. Its totient is φ = 316391040.

The previous prime is 321213281. The next prime is 321213307. The reversal of 321213301 is 103312123.

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

It is a cyclic number.

It is not a de Polignac number, because 321213301 - 2¹³ = 321205109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321213307) 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, 142086 + ... + 144328.

It is an arithmetic number, because the mean of its divisors is an integer number (40755528).

Almost surely, 2^321213301 is an apocalyptic number.

It is an amenable number.

321213301 is a deficient number, since it is larger than the sum of its proper divisors (4830923).

321213301 is a wasteful number, since it uses less digits than its factorization.

321213301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 321213301 is about 17922.4245290641. The cubic root of 321213301 is about 684.8537532105.

Adding to 321213301 its reverse (103312123), we get a palindrome (424525424).

The spelling of 321213301 in words is "three hundred twenty-one million, two hundred thirteen thousand, three hundred one".