321130031313 has 16 divisors (see below), whose sum is σ = 526982615936. Its totient is φ = 169387269120.

The previous prime is 321130031293. The next prime is 321130031347. The reversal of 321130031313 is 313130031123.

It is not a de Polignac number, because 321130031313 - 2¹⁰ = 321130030289 is a prime.

It is a super-2 number, since 2×321130031313² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 321130031313.

It is not an unprimeable number, because it can be changed into a prime (321130031713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588149968 + ... + 588150513.

It is an arithmetic number, because the mean of its divisors is an integer number (32936413496).

Almost surely, 2^321130031313 is an apocalyptic number.

It is an amenable number.

321130031313 is a deficient number, since it is larger than the sum of its proper divisors (205852584623).

321130031313 is a wasteful number, since it uses less digits than its factorization.

321130031313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176300504.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 321130031313 its reverse (313130031123), we get a palindrome (634260062436).

The spelling of 321130031313 in words is "three hundred twenty-one billion, one hundred thirty million, thirty-one thousand, three hundred thirteen".