321130300031 has 4 divisors (see below), whose sum is σ = 321214084272. Its totient is φ = 321046515792.

The previous prime is 321130300027. The next prime is 321130300061. The reversal of 321130300031 is 130003031123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321130300031 - 2² = 321130300027 is a prime.

It is a super-2 number, since 2×321130300031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321130299982 and 321130300009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321130300061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41886371 + ... + 41894036.

It is an arithmetic number, because the mean of its divisors is an integer number (80303521068).

Almost surely, 2^321130300031 is an apocalyptic number.

321130300031 is a deficient number, since it is larger than the sum of its proper divisors (83784241).

321130300031 is an equidigital number, since it uses as much as digits as its factorization.

321130300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83784240.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 321130300031 its reverse (130003031123), we get a palindrome (451133331154).

The spelling of 321130300031 in words is "three hundred twenty-one billion, one hundred thirty million, three hundred thousand, thirty-one".