321113013 has 12 divisors (see below), whose sum is σ = 463619520. Its totient is φ = 197607696.

The previous prime is 321113011. The next prime is 321113021. The reversal of 321113013 is 310311123.

It is not a de Polignac number, because 321113013 - 2¹ = 321113011 is a prime.

It is a super-3 number, since 3×321113013³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 321112983 and 321113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321113011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316173 + ... + 317186.

It is an arithmetic number, because the mean of its divisors is an integer number (38634960).

Almost surely, 2^321113013 is an apocalyptic number.

It is an amenable number.

321113013 is a deficient number, since it is larger than the sum of its proper divisors (142506507).

321113013 is a wasteful number, since it uses less digits than its factorization.

321113013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633388 (or 633375 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 321113013 is about 17919.6264749018. The cubic root of 321113013 is about 684.7824716434.

Adding to 321113013 its reverse (310311123), we get a palindrome (631424136).

The spelling of 321113013 in words is "three hundred twenty-one million, one hundred thirteen thousand, thirteen".