321100013 has 8 divisors (see below), whose sum is σ = 346500000. Its totient is φ = 295800048.

The previous prime is 321100001. The next prime is 321100027. The reversal of 321100013 is 310001123.

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 321100013 - 2⁴ = 321099997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321099967 and 321100003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321100313) 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, 18263 + ... + 31236.

It is an arithmetic number, because the mean of its divisors is an integer number (43312500).

Almost surely, 2^321100013 is an apocalyptic number.

It is an amenable number.

321100013 is a deficient number, since it is larger than the sum of its proper divisors (25399987).

321100013 is a wasteful number, since it uses less digits than its factorization.

321100013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50011.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 321100013 is about 17919.2637404554. The cubic root of 321100013 is about 684.7732305643.

Adding to 321100013 its reverse (310001123), we get a palindrome (631101136).

The spelling of 321100013 in words is "three hundred twenty-one million, one hundred thousand, thirteen".